
In a move that signals a tectonic shift in the intersection of professional sports and alternative financial assets, Major League Baseball (MLB) has entered a high-profile partnership with prediction market Polymarket and a memorandum of understanding with the CFTC.
Announced on Thursday, Polymarket has been officially designated as the league’s Official Prediction Market. Simultaneously, MLB Commissioner Rob Manfred and CFTC Chair Michael Selig have aligned to prioritize the protection of the sport’s integrity through a dedicated oversight framework.
According to industry sources, the commercial deal with Polymarket is estimated to be worth between $150 million and $300 million over a three-year term. This arrangement mirrors the scale of traditional elite sports sponsorships, granting Polymarket exclusive access to MLB marks and logos.
The brand will receive massive exposure across MLB’s vast digital ecosystem and at flagship league events. Furthermore, Polymarket will be granted access to official, low-latency league data directly from Sportradar.
Prioritizing Game Integrity
MLB Commissioner Rob Manfred emphasized that the move is a proactive step toward managing the risks associated with the rapid rise of prediction market trading:
“The new agreements that we formed with Polymarket and the CFTC are imperative steps in proactively managing the new and rapidly growing prediction market space. Protecting the integrity of the game on the field is our top priority. By engaging in this community, we are able to work together to create clear boundaries with the goal of mitigating risk while providing fan engagement opportunities.”
CFTC Chair Michael Selig added:
“We’ve committed to work together to protect the integrity and resilience of prediction markets relating to professional baseball.”
While MLB joins the NHL and MLS in exploring this asset class, it is by far the largest US sports property to do so. The league’s focus remains on utilizing these markets to monitor betting anomalies and protect the game’s resilience following recent controversies involving Cleveland Guardians pitchers.
By formalizing this relationship, MLB aims to create a blueprint for how major leagues can interact with decentralized prediction platforms without compromising the fairness of the competition.

