MLB Bets: Prediction Markets Pose Dangers to Players – and Loopholes

The Major League Baseball (MLB) announced a significant partnership with the prediction platform Polymarket in March. This allows US fans to wager on their favorite teams. The collaboration is controversial in the United States. Many fear that the increased exposure to bettors could lead to a rise in gambling-related threats to athletes. It is not just isolated outbursts, but a constant danger. Such prediction bets, often focused on specific in-game moments, are very popular. They engage fans more intensely in the game. However, the downside is hostility towards individual players. MLB players increasingly report abusive messages on social media. These include accusations, demands, and even death threats from disgruntled bettors. The league is aggressively pushing into these new markets to boost popularity and revenue. However, concerns about fairness and integrity are growing. The lack of stringent safeguards, common in traditional sports betting, is a problem. Polymarket itself is not bound by strict rules, critics say. It is rather a financial contract, which represents a major loophole. Trevor May, former baseball player and commentator, sharply criticized the Polymarket platform. He released a video on his YouTube channel on April 2, 2026, titled “The Hidden Danger of MLB's Prediction Market Deal." In it, he discusses the growing danger. For him, it is "likely worse" than traditional sports betting. He notes that Polymarket CEO Shane Coplan uses the word "bet" far too often to portray it as something else. According to May, this is evidence that these are bets not subject to the usual rules. May highlights that the Commodity Futures Trading Commission (CFTC) is the regulatory body for Polymarket, not the usual gambling commissions. This requires a rethinking of regulation.

Numbers and facts

In March 2026, the MLB announced its collaboration with Polymarket. This partnership is intended to allow fans across the USA to wager on their favorite teams. The popularity of microbets and prediction markets has significantly increased in the USA. Cleveland Cavaliers coach J.B. Bickerstaff warned of increased distraction, pressure, and security risks for athletes. The MLB Players' Association is trying to eliminate prop bets tied to individual player performance. A 2025 investigation into Cleveland Guardians pitchers Emmanuel Clase and Luis Ortiz for alleged game manipulation to secure easy gambling wins highlights the integrity issues. The CFTC welcomes the deepening ties between the MLB and prediction markets. However, critics doubt their ability to investigate match-fixing and corruption in sports. According to Trevor May, who discussed the situation in his YouTube video on April 2, 2026, the partnership is "probably worse" than traditional sports betting.

Background

The proliferation of sports betting across the United States has created a complex ecosystem around microbets and prediction markets. These types of wagers focus on specific in-game moments. They allow fans to engage more intensely with the game. However, such bets draw unwelcome attention towards individual players. Many baseball players report that their social media profiles are flooded with accusations, demands, or even death threats from disgruntled bettors. Cleveland Cavaliers coach J.B. Bickerstaff recently noted that deeper connections between sports and wagering could distract athletes. It could bring added pressure and even pose significant security risks. The MLB has leaned heavily into partnerships with sportsbooks and prediction platforms. The deal with Polymarket has been especially contentious due to fairness and integrity concerns. Many fear that the platform lacks the same protections as traditional sportsbooks. Financial benefits are the main motivation. Still, many are wondering if the trade-offs are worth it. The MLB Players' Association has taken steps. They are actively pushing to eliminate "prop bets" tied to individual player performance. This aims to reduce harassment.

“The long-term vision is to financialize everything and create a tradeable asset out of any difference in opinion.” - Trevor May, former baseball player and YouTuber

Such prediction markets are regulated by the Commodity Futures Trading Commission (CFTC). They are considered financial products. This allows them to exist in all 50 US states without adhering to strict gambling rules. Trevor May calls this a "huge loophole." The CFTC may oversee financial instruments, but it lacks expertise in sports integrity and betting fraud. This could become a problem, as the cases of Emmanuel Clase and Luis Ortiz showed. Tensions between state regulators and prediction markets are escalating. In the end, players might pay the cost. David Purdum, an ESPN journalist since 2014, has covered the gambling industry since 2008. He also views the development critically.

Why it matters for German players

For German players, developments in the USA are interesting but not directly relevant to the domestic market. In Germany, online gambling has been subject to the State Treaty on Gambling (GlüStV 2021) since July 1, 2021. This treaty introduced strict regulation. It aims to ensure player protection and combat money laundering. German players can only legally gamble with providers who hold a license from the Joint Gambling Authority of the Federal States (GGL). The GGL maintains an official whitelist on its website. All approved providers are listed there. The strict rules of GlüStV 2021 include a monthly deposit limit of 1,000 euros for sports betting and online slots. The central monitoring system LUGAS oversees this. There is also a wagering limit of 1 euro per spin on online slot machines. Such prediction markets, as offered by Polymarket in the USA and declared as financial products, would not be readily permitted in Germany. They would most likely fall under gambling regulation. For this, they would need a GGL license. This would subject them to all player protection measures, including monitoring by LUGAS. The German legislator prioritizes player protection. It does not allow such loopholes as Polymarket uses in the USA.

What it means for GGL-licensed casinos

For GGL-licensed casinos in Germany, the US developments mentioned here remain more of a cautionary tale. The strict licensing requirements in Germany are designed to prevent exactly such integrity problems and player endangerment. GGL casinos are not allowed to offer betting products that open the door to game manipulation. They must adhere to player protection measures. These include identity verification, deposit limits, and clear information on problem gambling prevention. The LUGAS system ensures that a player does not exceed the monthly deposit limit of 1,000 euros, even if they play with different providers. A platform like Polymarket, which masquerades as a financial product, would be classified as gambling under German rules. It would thus be subject to strict regulations. German gambling regulation is clear. It defines gambling by the wager, the element of chance, and the possibility of winning. Thus, it can be clearly stated: what looks like a bet, is a bet – and is subject to the GlüStV 2021. The GGL would examine this closely and take appropriate action. The German system focuses on maximum transparency and strict control. This prioritizes the integrity of sports and the protection of players over economic interests.