Major League Baseball Partners With Polymarket, Signs Integrity Agreement With Federal Regulator

Major League Baseball announced Thursday that it has entered into a multi-year partnership with prediction market platform Polymarket, designating the company as its official prediction market exchange partner. Major League Baseball Steps Into the Prediction Markets, Strikes Deal With Polymarketsj.com·Unverified The agreement comes alongside a separate memorandum of understanding with the Commodity Futures Trading Commission, establishing a framework for information sharing related to betting integrity. Major League Baseball Steps Into the Prediction Markets, Strikes Deal With Polymarketsj.com·Unverified

Under the deal, Polymarket and its brokers will gain exclusive access to official MLB logos and league data provided through Sportradar, MLB's global data distributor. Major League Baseball Steps Into the Prediction Markets, Strikes Deal With Polymarketsj.com·Unverified The platform will also receive brand exposure across MLB's digital ecosystem and at league events. Major League Baseball Steps Into the Prediction Markets, Strikes Deal With Polymarketsj.com·Unverified Financial terms of the partnership were not disclosed.

"Polymarket is about bringing fans closer to the moments that define sports," Polymarket CEO Shayne Coplan said in a statement. Major League Baseball Steps Into the Prediction Markets, Strikes Deal With Polymarketsj.com·Unverified "By working collaboratively with Major League Baseball and regulators, we can create new ways for fans to engage with the game while protecting the integrity of the sport." Major League Baseball Steps Into the Prediction Markets, Strikes Deal With Polymarketsj.com·Unverified

The partnership includes what MLB describes as a "comprehensive integrity framework." Under this framework, the league and Polymarket will work together to restrict markets that present integrity risks, including contracts based on individual pitches, manager decisions, and umpire performance. Major League Baseball Steps Into the Prediction Markets, Strikes Deal With Polymarketsj.com·Unverified Polymarket has agreed to block event contracts deemed to pose integrity threats to the game. Major League Baseball Steps Into the Prediction Markets, Strikes Deal With Polymarketsj.com·Unverified

MLB Commissioner Robert Manfred emphasized the league's focus on maintaining competitive integrity. "Protecting the integrity of the game on the field is our top priority," Manfred said. Major League Baseball Steps Into the Prediction Markets, Strikes Deal With Polymarketsj.com·Unverified "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." Major League Baseball Steps Into the Prediction Markets, Strikes Deal With Polymarketsj.com·Unverified

The announcement comes as concerns about betting and sports integrity have intensified. In November 2025, two Cleveland Guardians pitchers — Emmanuel Clase and Luis Ortiz — were indicted on federal charges for allegedly taking bribes from sports bettors as part of a scheme to manipulate the outcome of individual pitch bets during MLB games. Major League Baseball names Polymarket exclusive prediction market partnercnbc.com·SecondaryMajor League Baseball on Thursday announced it was naming Polymarket its official prediction market partner. The association also signed a memorandum of understanding with Commodity Futures Trading Commission Chairman Michael Selig. According to the announcement, Polymarket and its brokers will gain exclusive access to MLB logos and official data and receive "brand exposure" across league events. The MLB said the agreement will include a "comprehensive integrity framework. Both players have pleaded not guilty and face trial on charges of sports betting conspiracy and money laundering. Major League Baseball names Polymarket exclusive prediction market partnercnbc.com·SecondaryMajor League Baseball on Thursday announced it was naming Polymarket its official prediction market partner. The association also signed a memorandum of understanding with Commodity Futures Trading Commission Chairman Michael Selig. According to the announcement, Polymarket and its brokers will gain exclusive access to MLB logos and official data and receive "brand exposure" across league events. The MLB said the agreement will include a "comprehensive integrity framework.

The separate memorandum of understanding with CFTC Chairman Michael Selig establishes MLB's intent to share information with the commission regarding prediction market activity. Major League Baseball Steps Into the Prediction Markets, Strikes Deal With Polymarketsj.com·Unverified While Polymarket holds exclusive partnership rights, MLB said it will maintain relationships with other prediction market exchanges that offer baseball contracts. Major League Baseball Steps Into the Prediction Markets, Strikes Deal With Polymarketsj.com·Unverified

MLB joins a growing roster of major U.S. sports organizations entering the prediction market space. The National Hockey League became the first professional league to announce a prediction markets partnership in October 2025, striking deals with both Polymarket and rival platform Kalshi. MEXC Launches Prediction Markets — a Polymarket Rival in the Making?finance.yahoo.com·SecondaryMEXC quietly launched its Prediction Market in public beta with zero trading fees. The platform supports binary Yes/No contracts tied to crypto prices, politics, sports, macro events, and technology milestones. The move places MEXC into a rapidly expanding sector currently dominated by platforms such as Polymarket and Kalshi. Prediction markets—once a niche corner of the internet—are quickly becoming one of the most active battlegrounds in crypto trading. Major League Soccer followed with its own Polymarket partnership earlier this year, and the UFC also established a relationship with the platform. MEXC Launches Prediction Markets — a Polymarket Rival in the Making?finance.yahoo.com·SecondaryMEXC quietly launched its Prediction Market in public beta with zero trading fees. The platform supports binary Yes/No contracts tied to crypto prices, politics, sports, macro events, and technology milestones. The move places MEXC into a rapidly expanding sector currently dominated by platforms such as Polymarket and Kalshi. Prediction markets—once a niche corner of the internet—are quickly becoming one of the most active battlegrounds in crypto trading.

Prediction markets allow users to trade binary contracts based on real-world events — from sports outcomes to political elections to cryptocurrency price movements. Contract prices function as implied probabilities, with "Yes" shares settling at $1 if the predicted outcome occurs and expiring worthless if it does not. Major League Baseball Steps Into the Prediction Markets, Strikes Deal With Polymarketsj.com·Unverified Proponents argue these markets aggregate information more efficiently than traditional polling, as traders risk real capital on their forecasts. Major League Baseball Steps Into the Prediction Markets, Strikes Deal With Polymarketsj.com·Unverified

The sector has experienced rapid growth over the past year. Polymarket and Kalshi together accounted for more than 97% of prediction market activity at various points in 2025, with combined weekly trading volumes reaching billions of dollars during major events such as elections and central bank policy decisions. Major League Baseball Steps Into the Prediction Markets, Strikes Deal With Polymarketsj.com·Unverified Polymarket, founded in 2020 by CEO Shayne Coplan, operates on blockchain infrastructure and gained widespread attention during recent election cycles. Major League Baseball Steps Into the Prediction Markets, Strikes Deal With Polymarketsj.com·Unverified

Several other major platforms are positioning to enter the space. Cryptocurrency exchange Kraken plans to launch a full prediction market later in 2026. Sports betting platform Betr is partnering with Polymarket to integrate event contracts into its app, potentially reaching millions of users. Major League Baseball Steps Into the Prediction Markets, Strikes Deal With Polymarketsj.com·Unverified Brokerage Robinhood and traditional exchange operator Cboe are both exploring prediction market products. Major League Baseball Steps Into the Prediction Markets, Strikes Deal With Polymarketsj.com·Unverified

However, the industry faces ongoing regulatory uncertainty. The CFTC began reviewing rules around event contracts in early 2026, signaling potential new frameworks for how these markets operate. Major League Baseball Steps Into the Prediction Markets, Strikes Deal With Polymarketsj.com·Unverified Questions persist around issues such as market manipulation risks, how platforms verify and resolve outcome determinations, and whether certain types of events should be off-limits for betting markets. Major League Baseball Steps Into the Prediction Markets, Strikes Deal With Polymarketsj.com·Unverified

Critics have also raised concerns about insider trading and conflicts of interest when participants have direct knowledge of outcomes. The Cleveland Guardians case highlighted risks when individuals with the ability to influence results — such as players or officials — interact with betting markets. Supporters counter that formal partnerships with leagues and regulators can help establish monitoring systems to detect suspicious activity. Major League Baseball names Polymarket exclusive prediction market partnercnbc.com·SecondaryMajor League Baseball on Thursday announced it was naming Polymarket its official prediction market partner. The association also signed a memorandum of understanding with Commodity Futures Trading Commission Chairman Michael Selig. According to the announcement, Polymarket and its brokers will gain exclusive access to MLB logos and official data and receive "brand exposure" across league events. The MLB said the agreement will include a "comprehensive integrity framework.

The partnership structure MLB has chosen differs from traditional sports betting relationships. Rather than treating prediction markets solely as a commercial opportunity, the league has emphasized its coordination with federal regulators. CFTC Chairman Selig indicated the commission is in communication with other U.S. sports leagues as well, suggesting a broader regulatory engagement across the industry. MEXC Launches Prediction Markets — a Polymarket Rival in the Making?finance.yahoo.com·SecondaryMEXC quietly launched its Prediction Market in public beta with zero trading fees. The platform supports binary Yes/No contracts tied to crypto prices, politics, sports, macro events, and technology milestones. The move places MEXC into a rapidly expanding sector currently dominated by platforms such as Polymarket and Kalshi. Prediction markets—once a niche corner of the internet—are quickly becoming one of the most active battlegrounds in crypto trading.

For Polymarket, the MLB deal represents the latest in a series of high-profile partnerships that have elevated the platform's visibility. The company, which became a household name during the 2024 U.S. presidential election cycle, has moved aggressively to secure official relationships with sports organizations. These partnerships provide legitimacy and access to proprietary data that can differentiate Polymarket from competitors operating without league endorsements. Major League Baseball Steps Into the Prediction Markets, Strikes Deal With Polymarketsj.com·Unverified

MLB's entry into prediction markets also reflects the league's ongoing exploration of new fan engagement models. With traditional television viewership declining and younger audiences consuming sports differently, leagues are experimenting with interactive platforms that offer more than passive watching. Prediction markets represent one approach to deepen engagement, allowing fans to actively participate in forecasting game outcomes and trends. MEXC Launches Prediction Markets — a Polymarket Rival in the Making?finance.yahoo.com·SecondaryMEXC quietly launched its Prediction Market in public beta with zero trading fees. The platform supports binary Yes/No contracts tied to crypto prices, politics, sports, macro events, and technology milestones. The move places MEXC into a rapidly expanding sector currently dominated by platforms such as Polymarket and Kalshi. Prediction markets—once a niche corner of the internet—are quickly becoming one of the most active battlegrounds in crypto trading.

The league has emphasized that the integrity framework is designed to prevent the types of manipulation that have plagued other betting contexts. By restricting granular, easily manipulable markets — such as outcomes of individual pitches that a player could directly control — MLB aims to limit opportunities for corruption while still enabling broader game-level and season-level predictions. Major League Baseball Steps Into the Prediction Markets, Strikes Deal With Polymarketsj.com·Unverified

Whether these safeguards prove sufficient remains to be seen. The sports betting landscape has evolved rapidly, and leagues are navigating unfamiliar territory as they balance commercial opportunities with competitive integrity concerns. MLB's dual approach — embracing prediction markets while simultaneously coordinating with regulators — reflects an attempt to manage both objectives. Major League Baseball Steps Into the Prediction Markets, Strikes Deal With Polymarketsj.com·Unverified

As the 2026 baseball season approaches, the partnership will provide an early test case for how prediction markets integrate with major professional sports. Fans, regulators, and other leagues will be watching to see whether MLB's framework successfully balances innovation with integrity. MEXC Launches Prediction Markets — a Polymarket Rival in the Making?finance.yahoo.com·SecondaryMEXC quietly launched its Prediction Market in public beta with zero trading fees. The platform supports binary Yes/No contracts tied to crypto prices, politics, sports, macro events, and technology milestones. The move places MEXC into a rapidly expanding sector currently dominated by platforms such as Polymarket and Kalshi. Prediction markets—once a niche corner of the internet—are quickly becoming one of the most active battlegrounds in crypto trading.