MLS Names Polymarket Official Prediction Market Partner

Major League Soccer has signed a multi-year commercial partnership with prediction market platform Polymarket, granting the company official partner status across several of the league’s flagship events and competitions.

The agreement covers MLS regular-season competition alongside the MLS All-Star Game, MLS Cup and Leagues Cup, while also naming Polymarket as the league’s exclusive prediction market partner. Under the deal, the platform will operate within a framework broadly comparable to those applied to regulated sports betting operators.

As part of the arrangement, Polymarket has been awarded Authorised Gaming Operator status, allowing it to create and offer markets linked to MLS competitions while using official league branding and intellectual property. The partnership also establishes guidelines for how league-related markets are designed, monitored and governed.

MLS targets data-driven fan engagement

MLS said the partnership reflects a strategic push toward new digital engagement models, designed to appeal to a younger, data-literate audience that increasingly interacts with sport through real-time information and interactive content.

Shayne Coplan, founder and chief executive of Polymarket, described the collaboration as an opportunity to deepen fan interaction with the league.

“Through our partnership with MLS and Leagues Cup, we can surface real-time collective sentiment around key moments, matches, and season-long storylines, giving fans a more interactive, data-driven way to experience the game and engage with the world’s most popular sport,” Coplan said.

The two organisations plan to roll out joint digital activations across MLS and Leagues Cup platforms, with a particular emphasis on live match environments and second-screen experiences. These features are intended to provide audiences with real-time insight into fan sentiment without affecting match coverage or competitive integrity.

Integrity and oversight embedded in the framework

Safeguards form a central pillar of the partnership. MLS confirmed that trading activity linked to its competitions will be subject to independent monitoring, while market design and oversight will be coordinated between the league and Polymarket.

The stated aim is to balance innovation with the preservation of sporting integrity, as prediction markets become more closely integrated into mainstream sports ecosystems.

MLS is now the second major professional sports league in the United States to formalise an official relationship with a prediction market platform, following a similar approach adopted by the National Hockey League in an earlier agreement involving Kalshi and Polymarket.

Broader industry implications

Industry analysts believe the partnership could have knock-on effects across the sports data and integrity landscape. Jordan Bender of Citizens suggested the deal could benefit established data rights holders such as Sportradar and Genius Sports, as officially sanctioned prediction markets may require additional data, monitoring and settlement services.

Bender also cautioned that meaningful revenue impact is unlikely to materialise in the short term, noting that commercial and technical integration typically develops gradually. However, he argued that the MLS agreement represents a significant validation point for prediction markets within professional sport.

As prediction markets continue to evolve, the MLS partnership is likely to be viewed as another milestone in the gradual convergence of sport, data and interactive digital engagement.