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My name is Hans & I'm a blue belt in Jiu Jitsu, train weight lifting since a few years whenever I get too fat and recently started to work as a Business Consultant in the supplements industry where I fell in love with natural testosterone boosters, fat burners etc. Turkester.ONE is my little baby and hopefully will become its very own brand soon enough! Until then, I keep reviewing third party products.
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The only Betting Guide that can't!
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"Why Can't You Bet" stands as a groundbreaking publication that disrupts the conventional narrative around sports betting by exposing the hidden reasons for betting restrictions.
Chapter 1: A Brief History of Chance
The act of wagering—staking something of value on an uncertain outcome—is not a modern invention but a deeply ingrained aspect of human history, predating written records and spanning virtually every known civilization.1 Its evolution from rudimentary games of chance to a globally regulated, multi-hundred-billion-dollar industry is a story of social norms, technological advancement, religious doctrine, and the perpetual tension between individual liberty and state control. Understanding this long and often cyclical history is essential for contextualizing the legal and ethical boundaries that define the modern betting landscape.
The earliest evidence of gambling dates to the Paleolithic period.1 In Mesopotamia, the cradle of civilization, six-sided dice crafted around 3000 BCE have been discovered, themselves an evolution of astragali (knucklebones) used in games of chance for thousands of years prior.1 In ancient China, gambling houses were common fixtures in the first millennium BCE, with records indicating that betting on fighting animals was a popular pastime. The Chinese "Book of Songs" references "the drawing of wood," suggesting a primitive lottery, and by 200 BCE, keno slips were used to fund significant state works, possibly including the construction of the Great Wall of China.2
The intertwining of sports and gambling is equally ancient. Wagering was a popular activity at the Olympic Games in Greece, which date back to 776 BCE, and at the chariot races and gladiatorial contests held in Rome's Circus Maximus and Colosseum.3 These early markets were not without their integrity issues; as early as 388 BCE, the boxer Eupolus of Thessaly was known to have bribed opponents to throw fights at the Olympics, an early precursor to modern match-fixing.4
Roman authorities recognized the potential for social disruption caused by rampant gambling. While the activity was commonplace, it was periodically outlawed, with leaders like Caesar Augustus limiting it to specific festivals such as Saturnalia. The Roman poet Horace lamented that young men were more devoted to forbidden games of chance than to "manly habits of riding and hunting," a sentiment that echoes modern concerns about problem gambling.4 To circumvent these prohibitions, Roman citizens invented the first gambling chips, allowing them to claim they were playing for tokens rather than real money if caught by guards—a testament to the enduring impulse to wager despite legal restrictions.
The basic tools of modern gambling emerged over centuries. Playing cards first appeared in China in the 9th century CE, and the earliest casino game still played today, Baccarat, migrated from Italy to France in the 1400s.1 However, the institutionalization of gambling as a state-sanctioned enterprise began in earnest during the Renaissance. The first known casino, the Ridotto, opened its doors in Venice, Italy, in 1638, establishing a model for regulated, house-banked gaming.1
In Great Britain, gambling became a mainstream recreational activity, with Queen Elizabeth I chartering a national lottery in 1569.1 Lotteries proved to be a powerful tool for state financing, a model that was enthusiastically adopted in the American colonies. In 1612, King James I authorized a lottery to fund the fledgling Jamestown Colony.3 Subsequently, lotteries became a vital mechanism for public works in America, financing the construction of roads, canals, and even esteemed institutions like Harvard and Yale.2 In 1776, the First Continental Congress itself started a lottery to help fund the Revolutionary War.3
Alongside lotteries, British settlers brought a passion for horse racing, establishing the first American racetrack on Long Island in 1665. Horse racing has maintained a near-constant legal presence in the United States, an anomaly among other forms of gambling that have faced repeated prohibitions.3 The westward expansion further entrenched gambling in the American psyche, with poker—a game derived from the 17th-century Persian game As-Nas—becoming synonymous with the frontier saloon.1
The history of gambling in the United States is not a linear progression toward acceptance but a series of cycles, with periods of widespread legalization driven by the need for state revenue giving way to widespread prohibition fueled by scandals and social reform movements.3
The first wave of legalized gambling, dominated by lotteries, ended in the mid-1830s. Widespread corruption and scandals, where operators were accused of rigging games or simply absconding with the funds, led to a powerful public backlash. By the 1840s, many states had amended their constitutions to explicitly ban lotteries.3 The second wave emerged after the Civil War, as Southern states, desperate for funds for Reconstruction, once again turned to lotteries. This era also ended in scandal, most notably with the Louisiana lottery, whose operators were accused of bribing the state legislature on a massive scale.3
By the early 20th century, a combination of religious opposition and Progressive-era reforms had led to the near-uniform outlawing of gambling across the United States. This prohibition, however, did not eliminate the activity; it merely drove it underground, creating a lucrative black market that helped fuel the growth of organized crime syndicates like the mafia.1
The third, and current, wave of legalization began slowly. In 1963, New Hampshire broke with decades of precedent by authorizing a state lottery, representing a major shift in social policy as a state government directly entered the gambling business to raise funds.5 Other states soon followed, and today, state-run lotteries are ubiquitous. The late 20th century saw a gradual softening of attitudes, with Nevada establishing itself as the nation's gambling capital and New Jersey legalizing casinos in Atlantic City.3 This historical pattern—of states turning to gambling for revenue, followed by periods of concern over social costs and corruption—provides a crucial framework for understanding the current landscape. The 2018 Supreme Court decision striking down the federal ban on sports betting initiated the most rapid and widespread expansion of legal gambling in American history, an expansion driven almost entirely by the same motivation that funded the Jamestown Colony: the pursuit of tax revenue.5 This history suggests that the current boom, while unprecedented in scale, may not be the final chapter, and that a future backlash prompted by rising social costs or integrity scandals remains a distinct possibility.
To comprehend the complex world of what can and cannot be bet on, one must first be fluent in the fundamental language of wagering. Betting odds, market types, and the distinction between legal and illegal operators form the bedrock of the industry. These concepts are not merely technical details; they shape betting strategies, define risk, and are central to the regulatory frameworks that govern the entire ecosystem.
Betting odds are a numerical expression of the probability of a specific outcome occurring in an event. They are the mechanism through which bookmakers communicate risk and potential reward to the bettor.7 While the underlying mathematics are universal, odds are presented in several different formats globally, with three being the most prominent.
The Favorite (-): A negative number indicates the favorite. The number itself represents the amount a bettor must risk to win $100. For example, odds of -150 mean a bettor must wager $150 to win $100 (for a total return of $250).
The Underdog (+): A positive number indicates the underdog. This number represents the amount a bettor will win for every $100 risked. For example, odds of +200 mean a $100 wager will win $200 (for a total return of $300).8
Fractional Odds: Traditional in the United Kingdom and in horse racing, fractional odds express the net profit relative to the stake. The numerator represents the potential profit, and the denominator represents the stake. For example, odds of 5/1 (read as "five-to-one") mean that for every $1 wagered, the bettor will win $5 in profit.7
Decimal Odds: Popular in continental Europe, Canada, and Australia, decimal odds represent the total payout (stake + profit) for every one unit wagered. A decimal odd of 6.00 means a $1 bet will return a total of $6 ($5 profit plus the original $1 stake). Any decimal odd above 2.0 represents an underdog (a plus-money bet), while anything between 1.0 and 2.0 represents a favorite.7
Regardless of the format, all odds convey an implied probability. This is the likelihood of an outcome as suggested by the odds, which can be calculated with simple formulas. For example, for American odds, the implied probability for a favorite at -150 is 150/(150+100)=60%. For an underdog at +200, it is 100/(200+100)=33.3%. The sum of the implied probabilities for all outcomes in an event will always exceed 100%. This surplus is the bookmaker's built-in margin, commonly known as the "vigorish" or "juice".8
Regulated sportsbooks offer a wide array of betting markets beyond simply picking a winner. The most common types include:
Moneyline: The most straightforward bet, where the wager is simply on which team or individual will win the event, with the payout determined by the American odds.8
Point Spread: In sports where one team is heavily favored, a point spread is used to level the playing field for betting purposes. The favorite must win by a certain number of points (e.g., -7.5) for a bet on them to cash, while the underdog can lose by fewer than that number of points (or win outright) for a bet on them to be successful.8
Totals (Over/Under): A wager on the total combined score of both teams in a game. The sportsbook sets a line (e.g., 48.5 points), and bettors wager on whether the final total will be over or under that number.
Parlays and Prop Bets: Parlays involve combining multiple individual bets into a single wager, which requires all individual bets to win for a significantly higher payout. Proposition (prop) bets are wagers on specific occurrences within a game that may not be tied to the final outcome, such as which player will score the first touchdown or how many strikeouts a pitcher will record.6
The Legal vs. Illegal Divide
A critical distinction exists between the regulated, legal betting market and the vast, unregulated illegal market. Legal operators are licensed and overseen by a state or local authority, subjecting them to strict rules regarding consumer protection, responsible gaming, and tax obligations.9 Illegal operators, which include local bookies and offshore websites, function outside of this regulatory framework.
According to a comprehensive analysis by the American Gaming Association (AGA), the illegal gambling market in the United States is enormous. Americans wager an estimated $673.6 billion annually with these illegal operators, which generates $53.9 billion in revenue for these entities and results in a staggering $15.3 billion in lost annual tax revenue for state governments.10 This illegal market, which has grown by 22% since 2022, is driven by illegal online casinos (iGaming), unregulated "skill" machines in establishments like bars and convenience stores, and persistent illegal sports betting.12
The risks for consumers who use these illegal sites are profound. As the AGA notes, these "bad actors operate in the shadows with zero consumer protections, no responsible gaming obligations, and no economic return to the communities they exploit".11 Bettors have no legal recourse if an offshore site refuses to pay out winnings or shuts down without returning customer funds.13
The rapid expansion of legal sports betting in the U.S. since 2018 has created a complex dynamic. While one might assume that legal options would naturally diminish the illegal market, the data suggests a more complicated reality. The AGA's finding that the illegal market has grown alongside the legal one points to a powerful second-order effect. The massive increase in advertising and media coverage surrounding legal sports betting has normalized the activity for a new generation of consumers.14 These new and often inexperienced bettors may not easily distinguish between a state-licensed, regulated app and a sophisticated offshore website that appears in search results or is promoted through social media. Lured by perceived advantages like the ability to bet on credit, use cryptocurrency, or access markets forbidden in the legal sphere (such as political elections), a significant portion of this new audience is being funneled into the unregulated ecosystem. This indicates that legalization, rather than simply converting existing illegal bettors, is also acting as a tide that lifts all boats, making the challenge of enforcement and consumer education more critical than ever.
Chapter 3: The Global Regulatory Tapestry
The legal framework governing gambling is not monolithic. It is a complex and varied tapestry of laws and regulations that differ dramatically from one jurisdiction to another. In some nations, gambling is a state-run monopoly; in others, it is a licensed private industry; and in a few, it remains almost entirely prohibited. To understand the boundaries of what is bettable, one must first appreciate the regulatory structures that draw those lines. The United States, in particular, presents one of the most intricate models, characterized by a dual-track system of state and federal oversight that is still evolving.
Prior to 2018, the United States operated under the Professional and Amateur Sports Protection Act (PASPA) of 1992, a federal law that effectively outlawed sports betting nationwide, with the notable exception of Nevada and limited forms in a few other states.16 This landscape was fundamentally altered on May 14, 2018, when the U.S. Supreme Court, in the landmark case
Murphy v. National Collegiate Athletic Association, declared PASPA unconstitutional.5 The Court ruled that the law violated the Tenth Amendment's anti-commandeering principle, which prevents the federal government from forcing states to enforce federal laws. Justice Samuel Alito's majority opinion clarified that "Congress can regulate sports gambling directly, but if it elects not to do so, each state is free to act on its own".17
This decision did not legalize sports betting nationwide; rather, it returned the authority to do so to each individual state. The result has been the rapid emergence of a fragmented, state-by-state regulatory system. As of 2025, more than half of American adults have access to legal sports betting in their home state, but the rules governing these markets vary significantly.6 States have implemented different tax rates, licensing requirements, and consumer protection laws. Crucially, they have also established different rules regarding which events can be wagered upon. While betting on major professional sports is nearly universal in legal states, there are variations in the legality of betting on college sports, esports, and awards ceremonies.9 This patchwork approach means that an activity that is perfectly legal in New Jersey could be a criminal offense just across the border in a neighboring state, creating a complex compliance environment for operators and a potentially confusing one for consumers.9
Running parallel to the state-based regulation of sports gambling is a distinct and federally regulated system for "prediction markets." Platforms such as Kalshi and Crypto.com Sports operate nationwide, allowing users to trade contracts on the outcomes of future events, including sports, economic indicators, and, controversially, political elections.18
These platforms are not regulated as gambling. Instead, they function as financial exchanges under the exclusive jurisdiction of the Commodity Futures Trading Commission (CFTC), the federal agency that oversees derivatives markets.18 The contracts traded on these platforms are treated as financial instruments, similar to futures or options. For example, a contract on "Team A to win the Super Bowl" might trade at a price of $0.60, implying a 60% probability of that outcome. If Team A wins, the contract settles at $1.00; if they lose, it settles at $0.00.18
This dual-system structure has created a significant jurisdictional conflict. State gaming regulators have argued that these sports-based event contracts are "simply sports betting by another name" and should be subject to state gambling laws.20 They contend that allowing these platforms to operate nationwide under a federal framework preempts the states' traditional sovereign power to regulate gambling within their borders. This tension came to a head in the legal battles involving Kalshi's attempts to offer markets on U.S. congressional elections, a practice explicitly forbidden under state gambling laws but which Kalshi argued was permissible as a financial derivative.13
The existence of these two parallel regulatory regimes—one for state-regulated "gambling" and another for federally regulated "financial derivatives"—is a uniquely American phenomenon. It creates profound legal ambiguity and the potential for regulatory arbitrage, where an operator might structure a wagering product to fit the legal definition of a derivative specifically to bypass more restrictive state gambling laws. This bifurcation represents a fundamental battle over the very definition of a wager in the 21st century and poses a significant challenge to creating a coherent and consistent consumer protection framework for event-based speculation in the United States.
On a global scale, regulatory bodies work to create a more cohesive and effective approach to overseeing the gambling industry. The International Association of Gaming Regulators (IAGR) is a key organization in this effort. Comprised of representatives from gaming regulatory agencies around the world, IAGR's mission is to advance the effectiveness and efficiency of gaming regulation.22
Established in the 1980s, IAGR provides a forum for regulators to meet, exchange information, and develop best practices on issues ranging from licensing and compliance to responsible gambling and combating illegal operators.23 By facilitating dialogue and collaboration, the organization helps to harmonize regulatory standards across different jurisdictions, which is increasingly important as the betting industry becomes more globalized and operates across national borders. IAGR's work in promoting information sharing and developing unified strategies helps ensure that as the market evolves, regulatory frameworks can adapt to protect consumers and maintain the integrity of the industry worldwide.22
While the world of legal betting has expanded dramatically, its frontiers are not limitless. A vast array of events and outcomes remain firmly "unbettable," cordoned off by a complex web of legal statutes, ethical principles, and the practical realities of the bookmaking business. These prohibitions are not arbitrary; they exist to protect the integrity of foundational societal institutions, shield vulnerable populations, uphold moral standards, and ensure the basic viability of a betting market. This section provides an exhaustive analysis of these boundaries, deconstructing the rationale behind each category of prohibited wager.
Chapter 4: Legal Barriers - When the Law Forbids a Wager
The most formidable prohibitions on betting are those codified in law. Legislatures and courts have long recognized that certain types of wagers pose an existential threat to the fairness and public trust in core civic processes, such as elections and the administration of justice. These legal barriers are designed to insulate these critical functions from the potentially corrupting influence of financial speculation.
4.1 Betting on the Ballot Box: The Volatile Legality of Election Wagers
In the United States, wagering on the outcome of political elections has been almost universally illegal in the regulated market for over a century.9 This prohibition is deeply rooted in common law history, which viewed such bets with extreme suspicion. Early English case law, for instance, held that wagers involving electors were void as a matter of public policy because they introduced a pecuniary interest into the voting decision, thereby tainting the purity of the democratic process.24 Furthermore, there was a pervasive fear that election wagers could serve as a convenient disguise for electoral bribery, allowing a candidate to pay an elector for their vote under the guise of settling a bet.24
This historical aversion is reflected in modern statutes. Nevada, the nation's most established gambling jurisdiction, explicitly classifies betting on any election as a gross misdemeanor.25 Most other states, while not having such a specific statute, effectively prohibit it through their broader gambling laws, which do not authorize elections as a permissible betting event for licensed sportsbooks.9
This long-standing legal consensus has been dramatically challenged in recent years by the rise of federally regulated prediction markets. In a pivotal legal case, the New York-based exchange Kalshi sued its regulator, the Commodity Futures Trading Commission (CFTC), after the agency blocked its plan to offer contracts on which political party would control Congress.13 Kalshi's argument was that these were not "bets" in the traditional sense but sophisticated financial instruments that allow individuals and businesses to hedge against political risk and, more broadly, serve the public good by aggregating information to create highly accurate forecasts.13 The CFTC countered with the traditional argument: that allowing such markets would threaten the integrity of American elections and that they constituted a form of illegal gaming.13
The legal battle has been tumultuous. In September 2024, a federal judge ruled in favor of Kalshi, striking down the CFTC's prohibition.13 However, this victory was exceedingly brief. The Court of Appeals issued an immediate stay, freezing the ruling and leaving the legal status of election betting in a state of profound uncertainty.13 This ongoing conflict is more than a simple regulatory dispute; it represents a fundamental clash of philosophies. On one side is the view of markets as powerful and efficient information-aggregation tools, a concept championed by economists like Friedrich Hayek, which posits that the price of an election contract is the most accurate possible prediction of its outcome.27 On the other side is the traditional legal and civic view of elections as a sacred duty, an institution that must be shielded from the "commodification" that financial speculation would bring.24 The fear is that reducing a citizen's vote to a variable in a financial equation creates perverse incentives and erodes the public's trust in the democratic process itself. The ultimate resolution of this case will have far-reaching implications for how society regulates the intersection of finance, information, and civic life.
Table 1: Jurisdictional Snapshot of Election Betting Legality
Jurisdiction | Legal Status | Key Governing Law/Body | Notes |
United States | Prohibited / Contested | State Gambling Laws / CFTC | Prohibited at the state level for licensed sportsbooks. The legality for federally regulated prediction markets is the subject of ongoing, high-stakes litigation. |
United Kingdom | Regulated | UK Gambling Commission | Betting on political outcomes is legal and widely available through licensed bookmakers, treated similarly to sports betting. |
Australia | Regulated (Varies by Territory) | State/Territory Regulators | Licensed in some jurisdictions like the Northern Territory, Victoria, and Tasmania. Prohibited for bookmakers licensed in others, such as New South Wales and Queensland.24 |
Canada | Regulated | Provincial Regulators | Legal and offered by provincially run sports betting operators, such as in Ontario. |
A near-universal line is drawn by regulators around the world at betting on sports competitions involving minors. In the United States, most states explicitly prohibit wagering on high school sports and other youth events.9 This prohibition is not merely a suggestion but a foundational principle of modern gambling regulation, driven by a powerful ethical consensus to protect a uniquely vulnerable population.
The National Collegiate Athletic Association (NCAA) maintains one of the strictest policies in all of sports. Its rules categorically ban student-athletes, coaches, trainers, and any athletics staff member from participating in any form of sports betting activity related to any sport the NCAA sponsors, at any level—intercollegiate, amateur, or professional.28 This prohibition extends beyond placing a bet; it also forbids providing any information to individuals involved in sports betting that could influence a wager, such as disclosing an injury before it is made public.28
The rationale behind these stringent rules is multifaceted. First and foremost is the protection of the young participants themselves. Children and young adults are considered more susceptible to the pressures of gambling and the potential for exploitation. The introduction of a betting market around their games could expose them to undue influence, harassment from bettors, or coercion to manipulate outcomes (i.e., match-fixing).29 As one youth sports administrator noted upon learning of offshore markets on the Little League World Series, the idea of adults betting on "kids living their dreams" is "unsettling" and "creepy".29
Second, there is a significant concern about the long-term risk of gambling addiction. Research indicates that the earlier an individual is introduced to gambling, the more likely they are to develop a gambling disorder later in life.31 The developing adolescent brain is more susceptible to addictive behaviors, making early exposure particularly dangerous.33 Allowing betting on youth sports would normalize gambling for the participants and their peers at a critical developmental stage, running directly counter to public health efforts aimed at preventing youth gambling.30
Governing bodies like Little League International have taken an unequivocal stance, stating that "there is no place for betting on Little League games or on any youth sports competition" because it "fundamentally undermines the spirit of the event".29 This position reveals a core principle of the prohibition: the integrity and well-being of the child participant are valued more highly than the integrity of the sporting event itself. While preventing match-fixing is a factor, the primary legal and ethical driver is a societal duty of care to protect children as a vulnerable class, an obligation that overrides any arguments for market freedom or entertainment value. Despite these clear prohibitions in the regulated world, a significant challenge remains from unregulated offshore betting sites, which frequently offer markets on youth events like the Little League World Series, operating outside the reach of U.S. law and posing a direct risk to the children involved.29
Betting on the outcome of a court case, particularly a criminal trial, is strictly forbidden in all reputable jurisdictions. This prohibition is one of the most absolute in the gambling world, grounded in the legal doctrine of contempt of court, which criminalizes any action that could interfere with the proper administration of justice or undermine the authority of the courts.35
The introduction of a public betting market on a legal verdict would create a cascade of perverse and dangerous incentives for every individual involved in the judicial process. A juror with a financial stake in a "guilty" verdict might be swayed to convict, regardless of the evidence. A judge, aware of the odds, could be subtly influenced or, in a worst-case scenario, could place a bet themselves and rule accordingly. Defense lawyers might be incentivized to perform poorly to ensure a conviction they wagered on, while prosecutors might pursue a case not on its merits but on its betting potential.35 The very existence of such a market would transform the pursuit of justice into a speculative sport, fundamentally corrupting its purpose.
This principle is codified in various state laws. Florida's statutes, for example, make it unlawful to bet on the result of any "trial or contest of skill, speed or power or endurance of human or beast," a broad definition that clearly encompasses legal proceedings.37 Even without such specific language, general anti-gambling laws at both the state and federal levels would effectively prohibit such activity.38
The absolute nature of this ban is designed to protect not only the actual impartiality of the justice system but also its perceived legitimacy. The authority of the courts rests on the public's unwavering trust that outcomes are determined by law and evidence alone. The creation of a public betting market would introduce the spectacle of financial interest, inevitably eroding that public trust, regardless of whether any specific act of corruption ever occurred.35
It is useful to contrast this with the growing and controversial industry of third-party litigation funding (TPLF). In TPLF, an outside investor finances a lawsuit in exchange for a share of the potential settlement or award.40 Critics argue that this practice turns the legal system into a "house casino" by allowing funders to gamble on infringement suits. However, TPLF remains largely permissible because it is a private financial arrangement between sophisticated parties, framed as a tool to provide access to justice for plaintiffs who might otherwise lack the resources to pursue a claim. A public betting market, by contrast, is a purely speculative, open-access activity that would turn the verdict itself into a tradable commodity, thereby undermining the perceived sanctity and authority of the judicial branch.
Beyond the clear prohibitions of statutory law, there exists a category of wagers that are forbidden by a powerful, if unwritten, societal consensus. These are the "ethical red lines"—markets on events so sensitive that offering odds on them is considered morally repugnant. These prohibitions are enforced not by regulators, but by a collective sense of decency that deems certain aspects of human life and death as being beyond the pale of financial speculation.
There is a deep-seated ethical revulsion against the idea of betting on human suffering. In recent years, unregulated, crypto-based prediction markets have offered wagers on events such as the total acreage burned by a specific wildfire or the date it would be fully contained.41 This practice has been met with widespread condemnation, particularly from those directly impacted. Mark V. Jones, who lost his home in a California fire, described such gambling as "despicable," stating, "you would like to think that people wouldn't stoop so low to bet on someone else's demise".41
The core ethical problem with such wagers is their zero-sum nature and the perverse incentives they create. A bettor wagering that a fire will grow larger only profits if the tragedy worsens, creating a financial interest in destruction and suffering. This raises what ethicists call a "moral hazard"—the potential for a party insulated from risk to behave differently than it would if it were fully exposed to the risk. In a worst-case scenario, as one expert from the USC Neely Center for Ethical Leadership and Decision Making noted, "Imagine someone deep in gambling debt placing a large bet on a fire spreading to a nearby area and then deliberately starting a fire to ensure that outcome".41
This moral quandary is best understood by contrasting these speculative bets with a superficially similar but functionally distinct financial instrument: the catastrophe bond, or "cat bond".42 Cat bonds are essentially a form of insurance-linked security. An entity vulnerable to a natural disaster, such as an insurance company or a government agency like New York's Metropolitan Transit Authority, will issue a bond to investors.42 These investors provide a large pool of capital (the principal).
If the specified catastrophe (e.g., a hurricane of a certain intensity striking a specific region) does not occur within the bond's term, the investors receive their principal back plus a high-interest yield.45
If the catastrophe does occur, the issuing entity keeps the investors' principal to pay for insurance claims and fund recovery efforts. The investors lose their money.44
While a cat bond is functionally a wager that a disaster will not happen, its underlying purpose and capital structure are what make it ethically acceptable. The goal is not to profit from the disaster but to create a financial backstop against it. It is a risk-transfer mechanism designed to mitigate harm, where the investors' potential loss becomes the community's financial gain in a time of crisis. The speculative wildfire bet, conversely, is a simple, zero-sum wager where the bettor's gain is directly tied to the community's loss. This fundamental distinction in purpose—risk mitigation versus pure speculation on suffering—is the ethical dividing line that separates a legitimate financial tool from a morally condemned wager.
Perhaps the most visceral ethical red line is drawn at wagering on human mortality. "Death pools," games in which participants predict when a public figure will die, have a long and macabre history.46 The earliest documented instances date back to 15th-century Venice, where bets were placed on the life of the Pope. This practice became so widespread that in 1591, Pope Gregory XIV issued a papal bull forbidding all wagering on the duration of his pontificate, explicitly fearing that such bets could incentivize his assassination.47
This historical fear highlights the core ethical problem: creating a financial incentive, however remote, for a person's death. Modern death pools, often run as informal office pools or on websites, typically focus on elderly or ailing celebrities.49 While participants in these games are highly unlikely to take action to influence the outcome, the act of wagering itself is seen by many as a profound violation of human dignity. It represents the ultimate form of objectification, reducing a human life—with all its complexities, relationships, and value—to a mere event, a data point in a game to be won or lost.52
The most extreme and dangerous manifestation of this concept is the assassination market. These are anonymous online markets, often hosted on the dark web and funded with cryptocurrency, that allow users to place bounties on the lives of public figures.53 An individual can contribute to a prize pool that will be paid out to whoever correctly "predicts" the death of a targeted individual. This is not a passive prediction; it is an explicit and illegal solicitation of murder, using a market mechanism to crowdfund a contract killing. Assassination markets represent the horrifying technological realization of Pope Gregory XIV's 16th-century fears, demonstrating how the perverse incentive structure of a death pool, when combined with modern technology and anonymity, can become a direct and grave threat to life and social order.
A foundational principle of any fair market, whether for stocks or sports bets, is that all participants should have access to the same material information. Betting on the basis of "insider information"—material, non-public knowledge that could affect an outcome—is therefore prohibited, as it undermines the integrity of the market and creates an unfair advantage.54
This prohibition is directly analogous to insider trading laws in securities markets, which are regulated by the U.S. Securities and Exchange Commission (SEC) under laws like the Securities Exchange Act of 1934.55 The rationale is the same in both contexts: to protect the market from information asymmetry and ensure a level playing field. If insiders were free to trade on their privileged knowledge, ordinary participants would lose confidence in the market's fairness, leading to reduced liquidity and participation.56
In the sports betting world, regulators have attempted to define "insiders" as individuals with a direct connection to the game, such as athletes, coaches, referees, trainers, and other team or league personnel.28 These individuals are typically banned from betting on events in their own sport. However, enforcing rules against the use of inside information is fraught with challenges, particularly when the information is obtained by someone not directly affiliated with a team.
Consider the case of SEC v. Switzer. In the 1980s, former Dallas Cowboys coach Barry Switzer overheard a corporate executive discussing an impending merger. Switzer and his friends then bought stock in the company and profited handsomely. The SEC sued, but the courts ultimately ruled that Switzer had not violated insider trading laws because he had no fiduciary duty to the company and had not "wrongfully obtained" the information; he had merely overheard it by chance.58
This precedent highlights the immense difficulty in regulating the flow of information in sports betting. For example, if a reporter learns from a confidential source that a star player's injury is more severe than the team has publicly disclosed, is it illegal for them to bet based on that knowledge? What about a hospital employee who sees the player's X-rays? Under current sports betting regulations, which are far less developed than securities law, these scenarios exist in a significant legal gray area. Some states, like Arizona, have been identified as having a potential "regulatory gap" in their statutes, which may not adequately cover the misuse of non-public information by the general public.59 As the worlds of sports media and sports betting continue to converge through partnerships and acquisitions, the flow of such "soft" insider information will only increase, posing a major challenge for regulators seeking to maintain market integrity.
Not all betting prohibitions are enshrined in law or dictated by ethical norms. A significant category of "unbettable" events exists simply because the bookmaker—the "house"—refuses to offer a market on them. These practical prohibitions are not driven by civic duty or moral principle, but by the cold, hard logic of business and risk management. For a wager to be offered, it must be profitable for the operator and its outcome must be indisputable. If either of these conditions is not met, the house will simply say "no."
A common misconception among casual bettors is that a sportsbook operates like a neutral stock exchange, simply facilitating wagers between different parties. This is incorrect. A traditional sportsbook is not a neutral marketplace; it is the direct counterparty to almost every bet it takes. When a bettor wins, the sportsbook loses, and vice versa. Consequently, the fundamental business model of a retail sportsbook is not to facilitate fair competition, but to manage risk in a way that ensures a long-term profit margin.
This adversarial relationship leads to one of the most frustrating prohibitions for skilled bettors: the practice of limiting or banning winning players. Sportsbooks employ sophisticated risk management teams and algorithms to identify "sharp" bettors—individuals who consistently beat the market. These bettors may use advanced statistical modeling, or they may employ strategies like "arbitrage" (betting on both sides of a game at different sportsbooks to guarantee a small profit) or "chasing steam" (placing bets at books that are slow to adjust their lines after a major market move).60
Once a sportsbook identifies an account as belonging to a sharp bettor, it will take defensive measures to protect its bottom line. The most common tactic is to severely limit the maximum wager that account can place, often to trivial amounts like $50.60 In more extreme cases, the sportsbook may close the account and ban the user entirely. This practice, while infuriating for successful bettors, is a standard and legal business practice. It reveals a crucial truth about the industry: traditional sports betting is not a true, open market in the financial sense. A stock exchange does not ban a successful investor for being too good. A sportsbook, however, has a direct financial incentive to "show up the trader" and remove them from their customer pool.60 For the most skilled participants, the ultimate "unbettable" proposition is not a specific event, but any event on which they wish to place a meaningful wager once they have been identified as a threat to the house's profitability.
For a bookmaker to offer a market, the outcome of the event must be clear, objective, and officially verifiable by a trusted third party. The entire business of betting relies on the unambiguous settlement of wagers. Without a definitive and unimpeachable source to declare a winner and loser, the process would collapse into endless disputes, litigation, and a catastrophic loss of customer trust.
This practical necessity acts as a powerful, non-legal filter on what can be offered. For a sports bet, the final score as certified by the governing league (e.g., the NFL, NBA) is the unimpeachable source. For an election bet (where legal), the result certified by the official election commission serves this purpose. This is a core functional requirement shared by all forms of wagering, including prediction markets, which explicitly require "clear event definitions and outcomes that can be easily verified" from an "agreed-upon source of data".61
This principle of verifiability is why bookmakers will not offer markets on subjective or ambiguous outcomes. For example, one could not bet on:
"Who will win tonight's presidential debate?" The winner is a matter of subjective opinion, with no official arbiter.
"Is a particular work of art 'good'?" This is a question of aesthetic judgment, not verifiable fact.
"Which character in a television series is the most heroic?" This is a matter of interpretation.
Conversely, a market can be offered on the winner of a reality TV show, because even though the criteria might be subjective, there is an official, televised declaration of a single winner, which provides the necessary source for settlement. This practical need for a "referee" naturally confines the world of betting to the realm of the quantifiable and the officially adjudicated. It acts as an implicit boundary, preventing gambling from expanding into the more abstract, interpretive, and subjective areas of human experience, thereby complementing the more explicit prohibitions set by law and ethics.
The betting landscape is ultimately a dynamic ecosystem comprised of operators, regulators, and the bettors themselves. While previous sections have focused on the boundaries set by operators and regulators, this final part shifts the focus to the individual. It provides essential guidance on navigating the inherent risks of gambling through responsible practices. Finally, it looks to the horizon, analyzing the technological, market, and regulatory trends that are poised to reshape the future of the bet.
The expansion of legal gambling brings with it a societal obligation to promote awareness of its potential harms and to provide robust tools and resources for those who may struggle with their betting habits. Responsible gambling, also known as safer gambling, is a set of initiatives and principles designed to ensure that gambling is enjoyed as a form of entertainment while minimizing the potential for harm.62 The central goal is to empower patrons with the knowledge and tools needed to stay in control of their play.63
At its heart, responsible gambling is about maintaining a healthy and balanced relationship with the activity. Key principles, often promoted by state agencies and public health organizations, include:
Set Limits: Before starting to gamble, establish firm limits on both the amount of money and the amount of time you are willing to spend. Treat gambling losses as the cost of entertainment.64
Bet with Discretionary Funds: Only gamble with money set aside for entertainment. Never use funds needed for essential expenses like rent, bills, or groceries, and never borrow money to gamble.64
Know When to Stop: Avoid "chasing losses"—the act of increasing bets to try to win back money that has been lost. This behavior is a common sign of problematic gambling.64
Gamble for the Right Reasons: Wager for fun and entertainment, not as a way to make money or escape from stress or depression.64
Balance Gambling with Other Activities: Ensure that gambling remains a social and recreational activity that does not interfere with work, family, or other healthy hobbies.64
Industry and Regulatory Tools
To support these principles, regulators in virtually all legal jurisdictions mandate that operators provide patrons with a suite of responsible gambling tools. The American Gaming Association's (AGA) Responsible Gaming Statutes and Regulations Guide documents these requirements across the United States.63 These tools give players direct control over their betting activity.
Table 2: Responsible Gambling Tools and Resources
Tool/Feature | Description |
Self-Exclusion | Allows a player to voluntarily ban themselves from all land-based and online gambling platforms within a jurisdiction for a set period (e.g., one year, five years, or a lifetime). Operators are required to remove self-excluded individuals from marketing lists and deny them service.62 |
Deposit Limit | Enables a player to set a maximum amount of money they can deposit into their online betting account over a specific period (e.g., daily, weekly, or monthly).62 |
Wager/Time Limits | Allows a player to set a maximum amount they can wager or a maximum amount of time they can spend logged into a betting site or app over a given period.63 |
Cooling-Off Period / Time-Out | Lets a player take a short, mandatory break from gambling, ranging from 24 hours to several weeks, during which they cannot access their account.62 |
Reality Check | An in-game pop-up that appears at set intervals (e.g., every 60 minutes) to remind the player how long they have been playing and display their net wins or losses, prompting them to make a conscious decision to continue or stop.62 |
Activity Statements | Provides players with easy access to their complete transaction and betting history, offering a clear overview of their gambling expenditure over time.62 |
Beyond these tools, the industry commits nearly half a billion dollars annually to responsible gaming initiatives, which include extensive employee training on how to identify and assist patrons exhibiting signs of problem gambling, funding for independent research, and compliance with codes of conduct like the AGA's Responsible Marketing Code for Sports Wagering, which sets self-imposed restrictions on advertising to prevent targeting minors or vulnerable populations.63
For individuals who find themselves or a loved one struggling with gambling, a network of confidential and professional help is available. These resources are a critical component of the responsible gambling ecosystem:
National Problem Gambling Helpline: Provides a 24/7 confidential hotline. Call 1-800-GAMBLER, text 800GAM, or use the online live chat service.64
Gamblers Anonymous: A fellowship program based on a 12-step model where individuals share their experiences to help one another recover from a gambling problem.64
Gam-Anon: A companion organization that provides support and resources for the friends and family members of individuals with a gambling disorder.64
State-Specific Programs: Many states have their own dedicated programs, such as Time Out Ohio, which facilitates self-exclusion, and Change the Game Ohio, which focuses on preventing youth gambling.64
Blocking Software: Services like Gamban offer software that can be installed on computers and mobile devices to block access to thousands of online gambling sites and apps worldwide.64
The betting industry is in the midst of a profound transformation, driven by rapid technological innovation, shifting consumer behaviors, and an ever-evolving regulatory landscape. The coming decade promises to reshape not only how bets are placed, but the very nature of what a "bet" is. The future of wagering lies at the intersection of media, entertainment, and financial technology, a convergence that will create unprecedented opportunities for growth and novel challenges for regulators.
Emerging technologies are revolutionizing the betting experience, moving it from a static, pre-game activity to a dynamic and deeply integrated part of sports consumption.
AI and Machine Learning: Bookmakers are leveraging artificial intelligence and machine learning algorithms to analyze vast datasets, enabling them to generate more accurate odds, manage risk more effectively, and offer highly personalized betting markets and promotions to individual users.65
Immersive Experiences: Virtual Reality (VR) and Augmented Reality (AR) are poised to create immersive betting environments, allowing users to virtually attend a game and place wagers within a 360-degree digital space, enhancing engagement and interactivity.65
Convergence with Media: A major trend is the direct integration of betting features into live sports broadcasts and streaming platforms. Operators are investing heavily in "second-screen" experiences, real-time odds integration, and gamified interfaces that allow viewers to place wagers instantly as the action unfolds on the field. This convergence is blurring the lines between media companies and gambling operators, a trend exemplified by major marketing partnerships between sports leagues, media networks, and sportsbooks.66
This technological shift is leading to the rise of new product categories, most notably micro-betting. This involves placing instantaneous wagers on the outcome of discrete events within a game, such as "Will the next pitch be a strike?" or "Will this field goal attempt be successful?" This transforms betting from an intermittent transaction into a continuous, high-frequency engagement, fundamentally changing the user experience and posing new questions for responsible gambling frameworks.
Market Expansion
The global online gambling market is projected to experience explosive growth, with forecasts estimating its value will climb from $105.5 billion in 2025 to $286.4 billion by 2035, growing at a compound annual growth rate (CAGR) of 10.5%.15 This expansion is being driven by several key factors:
The Online and Mobile Revolution: The online segment is the fastest-growing part of the market, fueled by widespread smartphone usage and increasing internet penetration. Mobile platforms are expected to account for 57.0% of all online gambling revenue in 2025, driven by their convenience and the adoption of seamless in-app payment systems.15
The Rise of Esports: Competitive video gaming, or esports, has emerged as a major new frontier for the betting industry. With a global audience of hundreds of millions, primarily composed of younger, tech-savvy demographics, esports betting is captivating both traditional sports bettors and gamers alike. This new vertical offers operators a significant opportunity for diversification and growth as regulatory frameworks evolve to incorporate it into legal betting structures.15
Expansion into New Geographic Markets: While North America and Europe are currently the largest markets, significant growth potential exists in emerging economies in Asia-Pacific and other regions as digital infrastructure improves and regulatory frameworks liberalize.15
The primary driver of these trends is a new generation of consumers. Younger bettors are digital natives who expect a mobile-first, seamless, and interactive experience.66 Their engagement is fueling the adoption of new technologies and driving the growth of markets like esports.
This rapidly evolving landscape presents a significant challenge for regulators. The convergence of betting and media raises new concerns about advertising saturation and the potential for promoting impulsive, high-frequency wagering. The continued tension between state-based gambling regulation and the federal oversight of prediction markets will likely lead to further legal challenges and calls for a more coherent national framework. As the market matures, it is expected that regulators globally will place an even greater emphasis on robust responsible gambling measures, using technology like AI-driven monitoring systems to identify and intervene with at-risk players in real time.63 The future of betting will be a continuous negotiation between technological possibility, consumer demand, and the enduring need to protect both market integrity and public welfare.
Bottom Line
The world of wagering, an activity as old as civilization itself, is defined as much by its boundaries as by its possibilities. This guide has charted the complex frontiers of what can and cannot be bet upon, revealing a landscape shaped by a dynamic interplay of law, ethics, and the practical realities of the market. The prohibitions explored herein are not arbitrary; they are the result of centuries of societal negotiation, legal precedent, and moral reasoning, erected to safeguard the institutions and principles deemed essential to a functioning civil society.
The legal barriers against betting on elections and judicial outcomes serve to protect the perceived and actual integrity of democracy and the rule of law, insulating these core civic functions from the corrupting influence of financial speculation. The universal ban on wagering involving minors is not merely about preventing cheating, but reflects a fundamental societal duty of care to protect a vulnerable population from exploitation and the lifelong risks of addiction.
Ethical red lines, drawn by a powerful collective conscience, forbid the commodification of human suffering and mortality. While sophisticated financial instruments like catastrophe bonds can harness market forces for social good by transferring risk, purely speculative wagers on public tragedies and death are rejected as morally repugnant. These prohibitions underscore a societal belief that certain aspects of the human experience must remain outside the domain of the marketplace.
Finally, the practical constraints of the bookmaking business itself create their own set of limits. The need for objectively verifiable outcomes naturally filters out ambiguous and subjective events, while the adversarial business model of retail sportsbooks means that for the most skilled bettors, the ultimate "unbettable" proposition is any wager they are skilled enough to consistently win.
Looking forward, the betting industry is at a pivotal moment. Technological convergence is blurring the lines between gambling, media, and finance, creating immersive and continuous wagering experiences that will challenge existing regulatory paradigms. The rise of new markets like esports and the ongoing expansion into new jurisdictions promise continued growth, but this expansion will inevitably test the very boundaries that have been so carefully constructed. The future of betting will be defined by the ongoing tension between the drive for innovation and revenue, and the enduring responsibility to uphold the legal, ethical, and practical limits that ensure the integrity of our institutions and the well-being of society. Navigating this frontier will require regulators, operators, and bettors alike to proceed with vigilance, responsibility, and a deep understanding of the lines that must not be crossed.
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