MLB links with Polymarket and CFTC to expand betting while tightening rules on market integrity risks.
Major League Baseball has entered a new phase in its relationship with prediction markets. A fresh deal with Polymarket links one of America’s biggest sports leagues with a crypto-based betting platform. At the same time, regulators are stepping in to monitor risks tied to these markets.
Polymarket Expands with Partnership as League Clamps Down on Risky Bets
Polymarket confirmed it has been named MLB’s exclusive prediction market exchange partner. The platform will gain access to official league data and branding under the licensing deal. As such, Polymarket can expand its offerings while staying aligned with league standards.
We’re honored to announce MLB has named Polymarket as their Exclusive Prediction Market Exchange Partner.
Polymarket 🤝 MLB pic.twitter.com/o192gdhpZm
— Polymarket (@Polymarket) March 19, 2026
Both sides have also agreed to limit certain types of bets. Markets tied to individual pitches, umpire calls, or manager decisions will be restricted. These areas carry higher risks of manipulation or insider influence. The decision reflects growing concern around prop-style betting, which focuses on specific in-game actions.
Meanwhile, attention on integrity has increased following incidents last season. Some pitchers faced accusations of accepting bribes linked to betting outcomes. Those claims raised broader concerns about how detailed betting markets could affect player behavior.
MLB Signs Landmark Agreement with CFTC to Oversee Prediction Markets
Alongside the Polymarket deal, MLB has signed a Memorandum of Understanding (MOU) with the Commodity Futures Trading Commission. The agreement sets a formal structure for cooperation between the league and the regulator. It marks the first time the CFTC has entered such an arrangement with a professional sports league.
Moreover, information and discussion of risks tied to prediction markets will be shared by both parties. The framework allows faster responses to potential issues and supports ongoing monitoring. It also aims to track new trends as betting products evolve.
CFTC Chairman Michael S. Selig described the agreement as a step toward protecting market participants. He noted that closer coordination will help address fraud, manipulation, and related risks. MLB Commissioner Rob Manfred also backed the effort, signaling the league’s commitment to fair competition.
Growth in crypto-based betting has pushed regulators and sports organizations to act more closely together. Platforms like Polymarket offer new ways for users to engage with live events.
