Prediction market platform Kalshi has thrown down the gauntlet with a headline-grabbing $1 billion prize for anyone who can submit a perfect March Madness bracket. The announcement, made Monday, revives a similar challenge Warren Buffett offered back in 2014, though Kalshi’s version comes with a refreshingly honest admission: you’re almost certainly not going to win.

Kalshi CEO Tarek Mansour put the odds at roughly 1 in 120 billion. The company’s own press release estimates a perfect bracket at around 1 in 9.2 quintillion if you’re treating every game like a coin flip. Those are the kind of numbers that make winning the lottery look like a safe bet, but as Mansour points out, the odds aren’t technically zero.

Million-Pound Consolation Prizes

Recognising that nobody’s likely to crack the perfect bracket code, Kalshi has sweetened the pot with more achievable rewards. The top-scoring bracket will earn its owner $1 million. Another $1 million will go to charities selected by the company. Not a bad payday for getting closest to perfection.

The promotion is free to enter and requires no deposit or trade, making it accessible to anyone fancying their chances. It’s open to U.S. residents aged 18 and over. Florida and New York residents are excluded, though. The billion-dollar grand prize is being underwritten by SIG Parametrics, part of the Susquehanna Group, so the money’s real if someone somehow pulls off the impossible.

Phoenix Suns Star Leads Campaign

Kalshi has brought in Phoenix Suns shooting guard Devin Booker as the face of its “Billion Dollar Bracket Challenge.” The partnership carries a touch of poetic symmetry, as Booker was part of Kentucky’s 2014 team that entered the tournament with a perfect 31-0 record, only to see their undefeated season end in the Final Four.

“Everyone thought we were going to finish perfect. We didn’t. That’s life,” Booker said in a social media post. “But that doesn’t stop you from chasing it.” He’s positioning the bracket challenge as another shot at the perfection that eluded his college team.

The charitable component of Booker’s involvement includes $500,000 donations to mentoring nonprofit iMentor and Starting Five, Booker’s own charity supporting youth and family organisations in Arizona.

Recent NCAA Tensions

The promotion arrives during a rocky period in Kalshi’s relationship with college basketball’s governing body. Last month, the NCAA demanded the company stop using the phrase “March Madness” on its platform, claiming trademark infringement and stating it had never authorised Kalshi to use the branding. The company has since removed the term from its markets related to the tournament.

That dispute followed an even sharper controversy in December when Kalshi proposed event contracts tied to NCAA athletes entering or withdrawing from the transfer portal. NCAA President Charlie Baker called the idea “absolutely unacceptable,” and Kalshi backed down, stating it had “no immediate plans” to list those contracts.

Despite the regulatory headwinds, Kalshi is clearly betting big on college basketball interest. Whether anyone manages the statistically near-impossible perfect bracket remains to be seen. But the platform has certainly grabbed attention with a promotion that combines astronomical odds with genuine financial backing.