Professional poker champion Daniel Negreanu has entered a partnership with Kalshi, the prediction market platform that allows users to trade on outcomes ranging from sports to politics across 50 American states.
The collaboration was announced today (Tuesday) by Kalshi CEO Tarek Mansour, who described parallels between Negreanu's career journey and the company's own path through regulatory challenges. Negreanu, known as "Kid Poker," brings seven World Series of Poker (WSOP) bracelets and over $56 million in tournament winnings to the partnership.
"Kalshi's fight for prediction markets has followed a similar path," Mansour wrote in announcing the partnership. "We have failed and been rejected more times than I can remember, but we did not waver in our commitment to the vision. Expand the world of financial markets, no matter the cost, no matter the hardship".
For critics and regulators, however, this may serve as fodder and an argument that Kalshi’s binary event contracts are closer to gambling than to investing.
Gambling Concerns May Shadow Kalshi and Negreanu Partnership
The tie-up comes as Kalshi faces mounting scrutiny from state regulators who argue the platform operates more like a gambling venue than a legitimate financial market. Massachusetts Attorney General Andrea Joy Campbell recently sued Kalshi for alleged illegal gambling operations, with the state's Gaming Commission pushing for an injunction to remove sports contracts from the market.
Critics point to the selection of a poker professional as brand ambassador as potentially reinforcing concerns about Kalshi's resemblance to gambling operations. While Kalshi insists it provides "legitimate hedging" similar to commodity futures markets, the platform's public messaging regularly invites customers to "bet" on outcomes.
A few months ago, in the article “Still Investing or Already Binary Options Gambling,” I looked for an answer to the question of what Kalshi’s products really are, as they had already sparked some controversy at the start of trading.
Negreanu, however, expressed enthusiasm for the platform's capabilities, tweeting: "On Kalshi, you can trade on everything from Football to Politics to Pop Culture — it's a game-changer and available in all 50 States!".
Excited to announce my partnership with @Kalshi
— Daniel Negreanu (@RealKidPoker) September 16, 2025
To celebrate, I’m staking one of YOU into the Super Main Event at @WSOP Paradise
On Kalshi, you can trade on everything from Football to Politics to Pop Culture — it’s a game-changer and available in all 50 States!
Details here: pic.twitter.com/hjwDbLzikd
Billion-Dollar Battle Intensifies
The partnership announcement comes just a day after Kalshi's key partner Robinhood filed federal lawsuits seeking to block Massachusetts regulators from enforcing state gambling laws. According to court documents, roughly $1 billion worth of Kalshi contracts traded through Robinhood's platform during the second quarter alone.
"Sports wagering comes with significant risk of addiction and financial loss and must be strictly regulated to mitigate public health consequences," Campbell stated when announcing the state's lawsuit against Kalshi.
Pennsylvania's Gaming Control Board has argued that sports prediction markets operating under federal oversight directly challenge states' authority to regulate gambling within their borders.
In August, Kalshi and Robinhood Markets faced another federal lawsuit filed by the Ho-Chunk Nation, a federally recognized tribal nation in Wisconsin that operates several gaming facilities under a state compact permitting sports betting on tribal lands.
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Star Power Meets Market Volatility
Negreanu's involvement includes staking a fan into the WSOP Paradise Super Main Event. The Canadian-born player, who moved to Las Vegas in his early twenties after initially failing as a professional, eventually became the youngest WSOP champion in 1998 at age 23.
Kalshi has processed over $1 billion in trades on 3.4 million sports propositions since launching sports markets, despite earlier court arguments that such contracts constituted prohibited "gaming" under federal rules. The Commodity Futures Trading Commission (CFTC) has yet to weigh in on the platform's current operations, having canceled a planned public roundtable on prediction markets in April.
The company currently serves roughly two million users nationwide, though regulatory challenges continue mounting in key states where officials maintain that sports event contracts mirror traditional sports betting without proper licensing or taxation.
