Major U.S. sports leagues and players’ unions have filed public comments urging the CFTC to impose stricter controls on prediction markets. They argue that sports-event contracts carry the same integrity risks as sports betting yet operate with far weaker safeguards. The submissions come as the CFTC weighs how to regulate this overlapping market.
The NBA, MLB, PGA TOUR, ATP Tour, NFLPA, NBPA, MLBPA, NHLPA, and MLSPA all submitted positions. Their core message is clear. Without tighter rules, prediction markets invite manipulation, insider trading, and athlete harassment.
Players’ Unions Frame Prediction Markets as a Safety and Labor Issue
A joint submission from the NFLPA, NBPA, MLBPA, NHLPA, and MLSPA centers on athlete welfare. It states that the growth of sports betting has already increased harassment of players and their families. Unregulated prediction market contracts would make the problem worse.
From a fan perspective the unions see little difference between a sportsbook bet and a prediction market contract. Both trigger the same abusive behavior. The submission calls for a ban on contracts tied to negative outcomes such as injuries, penalties, or events a single player can influence.
It also demands restrictions on markets linked to broadcast language, prohibitions on biometric, health, and performance data, fan conduct policies, and potential bans for abusive fans. Due-process rights for athletes and equal access to information across leagues, regulators, and operators round out the list.
The unions take no position on whether the CFTC has authority. They focus only on protections if these markets are allowed to exist.
NBA Calls for Structural Overhaul and Market Limits
The NBA submission stands out for its detail on both market structure and regulatory design. It pushes for sports-betting-style rules including strict identity verification. Certain blockchain-based platforms lack comparable KYC systems and that creates integrity problems.
The league wants athletes, officials, and team personnel blocked from trading on league-related contracts. It calls for a minimum participation age of 21, real-time reporting of suspicious trades, data-sharing agreements, and cross-market surveillance. Player prop markets, injury-related contracts, officiating markets, and G League products should face limits or outright bans.
The NBA also flags micro-betting-style and parlay-style contracts as carrying amplified risks. It argues leagues must play a central role in deciding which markets are permitted. This comes while the league accelerates talks with Kalshi and Polymarket on possible official partnerships.
PGA TOUR, ATP Tour, and MLB Push for Operational Safeguards and League Control
The PGA TOUR highlights risks tied to the multi-day structure of golf events. It insists on official league data as the sole source for settlement, clear pre-disclosed methodologies, robust monitoring, KYC that identifies individual traders, and a minimum age of 21. Leagues should control markets before launch. Harm-reduction tools, education, and enforceable penalties are also required.
The ATP Tour goes further. It claims prediction markets may create risks that exceed those of traditional sportsbooks. Unlike sportsbooks, these platforms earn commissions regardless of outcome and therefore have less incentive to restrict high-risk markets. The ATP demands strong KYC that flags affiliations with players or leagues, mandatory cooperation on integrity probes, restrictions on injury, officiating, and in-match contracts, and settlement based only on official data backed by licensing agreements.
It rejects the current self-certification model. High-risk markets need full regulatory review.
MLB wants formal rules that embed collaboration between leagues and operators. It supports the CFTC’s recent advisory but says guidance is not enough. Exchanges must consult leagues before listing contracts, allow leagues to flag or restrict high-risk markets, establish information-sharing agreements, and report suspicious activity directly. These obligations should extend to futures commission merchants and introducing brokers. Position limits are offered as a flexible alternative to outright bans in some cases.
MLB recently entered a memorandum of understanding with the CFTC on integrity issues.
The Risk of Overreach and Implementation Challenges
These submissions share common ground. Prediction markets present integrity risks similar to sports betting. They require robust identity verification, exclusive use of official league data, tighter controls on high-risk contract types, and stronger protections for consumers and athletes.
Many criticize the CFTC’s self-certification framework and call for pre-approval on sports-related contracts. Leagues and unions want a direct seat at the table on market approval, data access, and investigations.
Yet there are clear risks in handing leagues veto power. Overly broad restrictions could limit legitimate price discovery and reduce liquidity exactly where sharp bettors seek transparency. Defining every “high-risk” market invites lobbying battles that favor incumbent leagues over innovation. Enforcement of cross-market surveillance and real-time reporting will demand heavy operational investment from platforms that currently operate with lighter compliance structures than regulated sportsbooks.
After eighteen years on bookmaker trading floors I have seen how rigid market-design rules can slow product development while failing to eliminate the very manipulation they target. The data gaps between platforms remain real. When the same outcome trades at different prices the edge exists whether leagues approve the contract or not.
The Bottom Line
Sports leagues and players unions are not opposing prediction markets outright. They are demanding structural changes that give them approval rights, data access, and veto power over contract types before the CFTC finalizes its framework. The operational reality is that implementing real-time surveillance, KYC upgrades, official-data settlement, and position limits across multiple platforms will raise costs and slow innovation. Whether those costs deliver cleaner markets or simply entrench league control is the open question. World Cup 2026 will test every one of these proposals in public. The sharper the cross-platform visibility, the harder it becomes for any single stakeholder to hide behind its own data.
