Why LeBron James’ $15 Million Polymarket Partnership Is Under Fire

LeBron James just inked a new deal with Polymarket that dwarfs his contract with the Philadelphia 76ers. But his partnership with the crypto-based prediction market is drawing scrutiny, as many argue that when an NBA superstar of James’ stature enters the speculative gambling space, the lines between sports endorsement and conflict of interest are blurred.

​As reported by The Athletic, James’ Polymarket deal is worth $15 million a year, nearly five times more than his $3.9 million salary with the Sixers.  But James is more than the superstar face of Polymarket: he was the market. Speculation over his summer free agency drove over $270 million to prediction platforms, with more than $45 million flowing through Polymarket alone.

Before endorsing Polymarket, James was a spokesperson for DraftKings. In January 2024, James joined DraftKings strictly to pick NFL games—a precise move to exploit a CBA rule allowing players to promote gambling as long as basketball is off-limits. Undoubtedly, the partnership was a signal of what was to come as sports gambling continues to rake in billions.

In the NBA today, ​James is not the only star who has ties to the prediction market. Giannis Antetokounmpo became a Kalshi shareholder earlier this year.

Currently, NBA rules allow players to hold up to a 1 percent stake in prediction and gambling platforms. According to Commissioner Adam Silver, Antetokounmpo stayed well within these bounds and committed no wrongdoing. Still, the optics of these deals continue to draw sharp scrutiny.

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Although the league rules may give athletes leeway, state regulators are taking a far stricter stance. New York Attorney General Letitia James recently launched lawsuits against prediction platforms like Polymarket and Kalshi, accusing them of operating illegal gambling businesses under state law.

​Unlike James and Antetokounmpo, San Antonio Spurs superstar Victor Wembanyama draws the line at endorsing any gambling or prediction market products.

“Absolutely not,” he said recently when asked if he would partner with gambling entities. “I will never do that. Honestly, I think it’s very sad to see some players promote it, in my opinion. Everybody does whatever they want, but without me.”

“I’ve refused much, much more money than I’ve made for things that were not to my values,” he continued. “And now I want to promote things that have a good impact, have a good influence, with whom I can share messages and values.

Kevin Durant, a FanDuel endorser, shrugged off Wembanyama’s criticism of NBA players who endorse gambling sites.

“That’s Wemby; he’s going to do what he does. That has nothing to do with me,” KD said. “I don’t really think about that question at all; that’s not on my mind as much as his. People are gonna do what they want to do.”

In an interview with The Root, Jemele Hill spoke about how legalized gambling in professional sports is having a detrimental impact on young people.

​“The normalization of sports gambling in our culture has made it so that there’s no stigma attached to it anymore,” Hill said. We are ushering in and really promoting a problem that is just destined to be just as bad, especially for young people, as cigarettes.”

​”My position isn’t that we should ban gambling, but that there needs to be far more safeguards in place,” she added. “ If we continue down this path, we’re basically sanctioning the next public health crisis.”

As James is throwing his influence behind Polymarket, the NBA is dealing with a wave of federal gambling investigations and league probes. Toronto Raptors forward Jontay Porter received a lifetime ban for manipulating prop bets and leaking confidential health data. Terry Rozier, Chauncey Billups, Damon Jones, and Malik Beasley are being investigated for insider tipping, performance bribery, and illegal gambling scheme involvement.

While James is serving purely as a brand spokesperson focused on non-NBA markets, the move continues to intensify the broader debate over professional sports’ increasingly complex relationship with prediction markets.