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MLB Names Polymarket Exclusive Prediction-Market Partner as League Signs First MOU With CFTC

The deals create a formal channel to police market manipulation in baseball.

Overview

  • Polymarket is granted exclusive rights to use MLB marks and logos, access official data through Sportradar, and receive promotion across league platforms under the multi-year pact.
  • A shared integrity framework will bar or limit high-risk contracts, including markets on individual pitches and on manager or umpire decisions, with uniform controls embedded in Polymarket’s U.S. rulebook.
  • A first-of-its-kind memorandum with the CFTC establishes confidential information-sharing and regular meetings to monitor baseball-related event contracts and respond to potential threats.
  • MLB says it will seek integrity agreements with other exchanges offering baseball markets, while state actions such as Arizona’s criminal case against Kalshi leave the regulatory landscape unsettled.
  • Front Office Sports reports the deal’s value between roughly $150 million and $300 million over multiple years, and ESPN reports the agreement can be voided if courts find prediction markets violate state law.