Key Points
The Major League Baseball (MLB) announced on Thursday that Polymarket has become its official prediction market partner, receiving exclusive rights to use MLB's intellectual property, official league data, and visibility in baseball events.
According to initial reports from Front Office Sports, this multi-season agreement marks a new chapter in the expanding collaboration trend between major sports organizations and prediction market operators.
When announcing the news about Polymarket, the baseball governing body also signed a memorandum of understanding with Commodity Futures Trading Commission (CFTC) Chairman Michael S. Celiq. This memorandum lays the framework for information exchange between the two parties regarding prediction market safeguards and professional baseball operations.
Although the agreement lacks a legally enforceable mechanism, it signifies an unprecedented collaboration between a federal regulatory agency and a major professional sports league.

CFTC Chairman Celiq stated on social media: “We are committed to working together to protect the integrity and resilience of prediction markets related to professional baseball.”
Integrity Factors Behind the Collaboration
The timing of this announcement is directly related to events from last season. In November, two pitchers from the Cleveland Guardians were criminally charged for allegedly accepting payments from gamblers to manipulate specific pitches in games.
These allegations have thrust the connection between baseball and gambling into the public discussion. Commissioner Rob Manfred addressed this issue in an official statement.
Manfred stated: “Protecting the integrity of the game on the field is our top priority. By engaging with this community, we can work together to establish clear boundaries to mitigate risks while providing fans with interactive opportunities.”

Despite granting Polymarket exclusive status, MLB confirmed it will continue to maintain existing relationships with other prediction market platforms offering baseball-related contracts.
Regulatory Challenges Facing Prediction Markets
Polymarket CEO Shane Coplan views this collaboration as an opportunity to enhance fan engagement while working with regulators to maintain competitive integrity.
This development comes as prediction market platforms face increasing scrutiny from state-level regulators. Earlier this week, the Arizona Attorney General filed criminal charges against competitor Kalshi, claiming the platform was operating an unlicensed gambling enterprise within state lines.
The collaboration between the CFTC and MLB indicates federal regulatory support for sports-related prediction markets, contrasting with the stance of state gambling regulators, who believe these platforms should fall under the jurisdiction of sports betting.
The arrangement between MLB and Polymarket echoes other similar agreements.

