Philadelphia 76ers forward LeBron James shared a short video on social media Saturday indicating a forthcoming partnership with Polymarket, the prediction market platform. The 14-second clip, posted to both X and Instagram, shows James inside a stylized elevator featuring buttons labeled politics, crypto, sports, economy, culture, weather, esports and technology. He selects the sports option, steps into an office setting and the sequence ends with the Polymarket logo and the words “COMING SOON.”

James captioned the post “Welcome to Polymarket HQ. Coming soon” and added “In partnership with @Polymarket.” Polymarket quickly responded on X, writing “thanks for swinging by our HQ” accompanied by a goat emoji, a nod to James’s long-standing nickname.

Details of the Collaboration Remain Limited

A spokesperson for James described the video as a teaser for a larger campaign scheduled to begin the following week. The work is expected to center on football. James’s previous commercial arrangement with DraftKings has expired. Neither the terms of the new agreement nor James’s precise role—whether as ambassador, spokesperson or something broader—have been disclosed.

The announcement arrives shortly after James signed a two-year contract with the 76ers following his free-agency decision. That move itself generated substantial activity on prediction markets. Trading volume linked to his team choice reached approximately $273 million across platforms, with traders largely failing to anticipate the Philadelphia outcome.

Prediction Markets Gain Momentum Amid Sports Interest

Prediction markets have recorded elevated notional volumes throughout the summer, driven in large part by major sporting events. Platforms including Polymarket and Kalshi accounted for the majority of activity across a group of nine markets that posted tens of billions of dollars in monthly volume during June, July and August.

James is not new to commercial ties in the digital asset space. He and the LeBron James Family Foundation previously entered a multi-year partnership with Crypto.com in 2022. At that time James stated that blockchain technology was transforming the economy, sports, entertainment and social engagement.

Mixed Reactions and Regulatory Backdrop

The social media post drew criticism from some users who objected to an association with prediction markets, which they viewed as a form of gambling promotion. One critical reply received thousands of likes, exceeding engagement on James’s original post at the time of reporting.

Polymarket continues to face legal challenges. Approximately 20 states have initiated actions concerning sports-related contracts offered by Polymarket, Kalshi or both. State officials contend that certain contracts constitute illegal sports betting, while the companies maintain the products fall under federal financial market regulations.

James becomes the first individual NBA player publicly linked to a Polymarket partnership. Other athletes, including those in basketball, golf and soccer, have previously aligned with competing platforms. Further information on the campaign is expected in the coming days.