Why Prop Betting Restrictions on College Sports Are Growing, Betzonic Explains

Proposition betting on college sports has become one of the most scrutinized areas of the American sports wagering market. Since the Supreme Court’s 2018 decision in Murphy v. NCAA struck down the Professional and Amateur Sports Protection Act (PASPA), individual states have moved at different speeds to regulate not just whether sports betting is legal, but what kinds of bets are permissible. Prop bets — wagers on specific in-game outcomes tied to individual player performance — have emerged as a particular flashpoint, especially when those players are unpaid college athletes. The restrictions now spreading across multiple states reflect a collision between commercial betting interests, athlete welfare concerns, and the structural vulnerabilities that come with amateur competition.

The Core Problem: Why College Athlete Props Carry Unique Risks

Professional athletes operate within environments that include agents, union protections, significant salaries, and established integrity monitoring systems. College athletes, by contrast, are students who, even after the NCAA’s 2021 NIL rule changes, earn far less and operate with far fewer institutional safeguards. A prop bet on Patrick Mahomes throwing for over 275 yards is a very different product from a prop bet on a 20-year-old backup quarterback completing more than 14 passes in a conference game. The latter involves someone who is far more accessible to bad actors, more susceptible to financial pressure, and playing in a competitive environment where individual performance is more variable and harder to monitor.

The integrity concern is not theoretical. In 2023, the Iowa Hawkeyes and Iowa State Cyclones became the center of a significant investigation when the Iowa Division of Criminal Investigation found that multiple student-athletes had placed bets on their own sports — and in some cases on their own games. Similar investigations surfaced at Alabama, Mississippi State, and several other programs in the same year. Investigators noted that prop betting markets, because they focus on granular individual statistics, create more targeted manipulation opportunities than simple point-spread bets. A player does not need to throw a game to affect a prop — they only need to underperform in one specific statistical category, which is far easier to conceal and rationalize.

Beyond direct manipulation, there is the problem of information asymmetry. A college athlete’s roommate, position coach, or athletic trainer may know that a player is nursing a hamstring injury before that information reaches the public. Prop markets on that player’s performance become exploitable in ways that regulated professional markets are better equipped to detect and prevent.

State-Level Regulatory Responses and the Legislative Trend

Ohio was among the first states to formally restrict in-state college athlete prop betting after legalizing sports wagering in January 2023. The Ohio Casino Control Commission moved relatively quickly to address the issue once regulators identified the specific risks associated with amateur competitors. Maryland, Massachusetts, and Vermont have each enacted provisions that either ban college player props entirely or restrict them to events not involving in-state institutions. Kentucky, which launched legal sports betting in September 2023, included explicit prohibitions on props tied to individual college athlete performance from the outset of its regulatory framework.

By mid-2024, more than a dozen states had implemented some form of restriction on college athlete proposition bets, a number that had grown substantially from just two or three states with such rules in 2021. The National Council on Problem Gambling and several state attorneys general offices have actively lobbied for these restrictions, arguing that the potential for harm — both to athletes and to the integrity of competition — outweighs the incremental revenue generated by college prop markets. Analysts at Betzonic have tracked this regulatory evolution closely, noting that the pace of state-level action has accelerated following each high-profile investigation involving student-athlete gambling.

The NCAA itself has been vocal in supporting prop betting restrictions, though its enforcement authority ends at the athlete level. The organization submitted formal comments to several state gaming commissions in 2022 and 2023 urging them to prohibit prop wagering on college sports entirely. While the NCAA cannot compel states to act, its institutional weight has contributed to the legislative momentum, particularly in states where university athletic programs carry significant political influence.

How Operators and Platforms Are Adapting

For licensed sportsbooks, the patchwork of state regulations creates operational complexity. A platform available in 15 states may need to serve different product menus depending on jurisdiction — offering college player props in states that permit them while suppressing those markets entirely in states that do not. This requires geofencing accuracy, real-time market toggling, and compliance teams capable of interpreting evolving regulatory guidance. Some operators have chosen to apply the most restrictive standard across all markets to simplify compliance, effectively eliminating college athlete props from their entire product offering rather than managing state-by-state variations.

The question of what constitutes a «prop» has also become a genuine legal and regulatory debate. A team-level prop — say, whether a college football team will score more than 27 points — is treated differently from an individual player prop in most regulatory frameworks. But hybrid markets, such as whether a specific player will score the first touchdown, occupy a gray area that different states have resolved differently. Resources like Betzonic online provide ongoing coverage of how individual state commissions are interpreting these boundaries, which has become genuinely useful for both operators and bettors trying to understand what is and is not available in their jurisdiction.

Integrity monitoring has also evolved in response. Companies like Genius Sports and Sportradar, which provide data and integrity services to regulated sportsbooks, have expanded their college sports monitoring programs significantly since 2021. These systems flag unusual betting patterns — a sudden surge in action on a specific player prop, for instance — and report anomalies to regulators and law enforcement. However, these systems are only as effective as the markets they monitor, and restricting college athlete props reduces the attack surface for manipulation in ways that monitoring alone cannot fully address.

The Broader Policy Debate and What Comes Next

The growing restrictions on college athlete prop betting sit within a larger national conversation about the appropriate scope of sports wagering in the United States. Some advocates argue that the solution is not restriction but better education and monitoring — that banning prop markets simply pushes bettors toward offshore, unregulated platforms where no integrity oversight exists at all. This is a legitimate concern. The American Gaming Association estimated in 2023 that illegal sports betting in the United States still accounts for a substantial portion of total wagering volume, and overly restrictive regulated markets can inadvertently strengthen unlicensed competitors.

Others, including several prominent sports law scholars, argue that college sports occupy a categorically different position from professional leagues and that the commercial logic of prop betting simply should not apply to student-athletes regardless of NIL reforms. This view holds that the 2021 NIL changes, while significant, did not transform college athletics into a professional enterprise in any regulatory sense, and that the duty of care owed to student-athletes justifies market restrictions that would be inappropriate in professional contexts.

Federal legislation has been proposed on multiple occasions to create a unified national framework for sports betting regulation, which would theoretically allow for consistent standards on college athlete props rather than the current state-by-state patchwork. The Sports Wagering Market Integrity Act and similar proposals have not advanced through Congress, but the ongoing state-level activity may eventually create enough pressure for federal action, particularly if high-profile integrity failures continue to emerge from college sports programs.

What is clear from the trajectory of the past several years is that the initial post-PASPA assumption — that legalized sports betting would largely replicate the offshore market’s product menu within a regulated framework — has not held in the college sports context. Regulators, legislators, and operators are actively renegotiating the boundaries of what is permissible, with athlete welfare and competitive integrity driving restrictions that the pure commercial logic of the market would not produce on its own. Whether those restrictions will ultimately stabilize into a durable national standard or continue to fragment along state lines remains one of the more consequential open questions in American sports policy.