Shayne Coplan, chief govt officer of Polymarket, on the ground of the New York Inventory Change (NYSE) in New York, US, on Thursday, Nov. 13, 2025.
Michael Nagle | Bloomberg | Getty Photographs
Main League Baseball on Thursday introduced it was naming Polymarket its official prediction market accomplice. The affiliation additionally signed a memorandum of understanding with Commodity Futures Buying and selling Fee Chairman Michael Selig.
In keeping with the announcement, Polymarket and its brokers will achieve unique entry to MLB logos and official knowledge and obtain “model publicity” throughout league occasions. The MLB mentioned the settlement will embrace a “complete integrity framework.”
“Polymarket is about bringing followers nearer to the moments that outline sports activities,” Polymarket CEO Shayne Coplan mentioned in an announcement. “By working collaboratively with Main League Baseball and regulators, we are able to create new methods for followers to interact with the sport whereas defending the integrity of the game.”
Below the settlement with Selig, the MLB mentioned it established a “clear intent” to share info with the CFTC associated to prediction markets. Whereas Polymarket can have unique rights, the MLB mentioned it is going to retain relationships with different prediction market exchanges that supply baseball contracts.
Polymarket and MLB additionally mentioned they might work collectively to “prohibit markets that current an integrity danger to MLB, comparable to particular person pitches, supervisor selections, and umpire efficiency, amongst others,” including that Polymarket would prohibit occasion contracts that pose an “integrity danger” to the sport.
The settlement comes as issues about betting and sports activities have grown. Final 12 months, two Cleveland Guardians pitchers had been indicted on prices that they took bribes from sports activities bettors as a part of a scheme to rig bets on pitches thrown throughout MLB video games.
“Defending the integrity of the sport on the sphere is our prime precedence,” MLB Commissioner Robert Manfred mentioned. “By partaking on this neighborhood, we’re in a position to work collectively to create clear boundaries with the purpose of mitigating danger whereas offering fan engagement alternatives.”
Prediction markets have been booming in reputation, permitting customers to commerce on occasions starting from sports activities to politics to popular culture. They’ve additionally come below intense scrutiny for allegations of insider buying and selling and lack of regulation.
The announcement follows Main League Soccer partnering with Polymarket earlier this 12 months. The Nationwide Hockey League was the primary main sports activities league to announce a prediction markets partnership final October.
Disclosure: CNBC and prediction market Kalshi have a industrial relationship that features a CNBC minority funding.

