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Prediction market platform Polymarket has become an official partner of the New York Yankees, expanding its sports sponsorship footprint in New York, with branding set to appear at Yankee Stadium and on local game broadcasts for the rest of the 2026 MLB season. The agreement comes as rival prediction market operator Kalshi faces an ongoing legal battle with New York regulators over sports event contracts, putting the rapidly growing prediction market industry under increased scrutiny.
For gambling industry watchers, that makes the Yankees agreement notable beyond sponsorship alone: prediction market brands are gaining mainstream sports exposure in one of the most tightly watched jurisdictions in the country.
According to the announcement, Polymarket branding will appear on LED signage in the stadium and on rotating signage behind home plate during Yankees telecasts on YES Network and Prime Video. The partnership also includes fan activations, including opportunities for children to make an outfield catch, run the bases, and deliver the lineup card.
Yankees Senior Vice President of Partnerships Michael Tusiani said in a news release, “We are excited to begin a relationship with Polymarket — Major League Baseball’s prediction market partner.” He added that the team expects the signage and fan experiences to help raise Polymarket’s visibility with Yankees fans.
New York teams deepen prediction market ties
The Yankees are the latest major New York team to sign with a prediction market platform. The New York Mets last week signed Novig as their official prediction-market partner in a multiyear agreement, and the New York Rangers partnered with Polymarket in January.
The broader category has also expanded into other major venues. In May, Kalshi became an official partner of Madison Square Garden and MSG Networks. Earlier, in March, MLB named Polymarket its exclusive prediction market exchange partner.
Those deals are arriving while questions remain about how sports event contracts will be treated under state gambling law, particularly in New York.
Kalshi fight remains the key legal backdrop
New York is pursuing a $36 billion enforcement action against Kalshi, according to the source report. Attorney General Letitia James has filed a civil enforcement case seeking to stop Kalshi from operating in violation of state gambling laws.
A federal judge previously ruled that New York could enforce its gambling laws against Kalshi’s sports event contracts while the case moves forward. The source report also said the CFTC and Department of Justice sought emergency relief, but a federal judge denied that request.
Kalshi is now appealing in the Second Circuit, with its opening brief due Aug. 31. Separately, the New York State Gaming Commission is seeking documents by Aug. 14 related to Kalshi’s sports products and users under 21.
The state’s scrutiny is not limited to one platform. The report noted that Kalshi sued Coinbase and Gemini in April over alleged illegal gambling activity in New York, while Novig’s Ludlow Exchange received CFTC approval as a designated contract market in June.
What comes next is clearer in court than in sponsorships: New York’s pending deadlines in August may offer the next concrete signal on whether prediction market operators can keep expanding sports-related offerings in the state while striking high-profile team deals.
