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Major League Baseball Names Polymarket Its Exclusive Prediction Market Partner

Major League Baseball Names Polymarket Its Exclusive Prediction Market Partner

According to the CFTC, its first memorandum of understanding with MLB is designed to support information sharing on professional baseball prediction markets and address fraud, manipulation and related misconduct.

Fact Check
The claim is directly supported by a primary news report from Bloomberg (Major League Baseball Signs Prediction Market Deals With Polymarket, CFTC) dated March 19, 2026. The report explicitly confirms the 'exclusive partnership' and the memorandum with the CFTC regarding integrity safeguards and information sharing. This follows a series of similar partnerships by other leagues like MLS and UFC earlier in 2026, as noted in Yahoo Sports and Front Office Sports.
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Summary

Major League Baseball previously said it named Polymarket its official prediction market exchange partner and signed a memorandum of understanding with the U.S. Commodity Futures Trading Commission to help protect baseball integrity. The new update adds that, according to the CFTC’s official announcement, the memorandum is the regulator’s first such agreement with a professional sports league and is specifically intended to coordinate information sharing on professional baseball prediction markets. The agreement targets fraud, market manipulation and other misconduct, adding more detail to how the CFTC and MLB plan to oversee integrity risks tied to these markets.

Terms & Concepts
  • Prediction market: A market where participants trade contracts tied to the outcome of future events, including sports and other real-world developments.
  • CFTC: The U.S. Commodity Futures Trading Commission, the federal regulator overseeing derivatives markets and certain prediction market activity.
  • Polymarket: A prediction market platform where users trade event-based contracts linked to real-world outcomes.