Kalshi Offers $1 Billion Prize for Perfect March Madness Bracket

College basketball fans can compete for the unprecedented prize during the 2026 NCAA Tournament.

Mar. 16, 2026 at 7:50pm

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Kalshi, a company that offers prediction markets, has announced a $1 billion prize for anyone who can correctly predict a perfect bracket for the 2026 NCAA Division I Men's Basketball Tournament, also known as March Madness. This prize is significantly higher than the $1 million prizes previously offered by Warren Buffett and Quicken Loans for a perfect bracket.

Why it matters

The prospect of a $1 billion prize is sure to generate significant interest and excitement among college basketball fans, who will be eager to test their predictive skills against the astronomical odds of correctly guessing the outcome of all 67 games in the tournament. This promotion could also drive increased viewership and engagement with the NCAA Tournament, which is one of the most widely watched sporting events in the United States.

The details

Kalshi is offering the $1 billion grand prize, as well as an additional $1 million prize for the contestant with the most correct picks and $1 million donations to two charities. The chances of completing a perfect bracket are estimated to be around 1 in 9.2 quintillion, making it an extremely rare and difficult feat. The NCAA Tournament begins on Tuesday, March 19, 2026, with the Kalshi bracket challenge officially starting on Thursday, March 21.

  • The NCAA Tournament begins on Tuesday, March 19, 2026.
  • The Kalshi bracket challenge will officially start on Thursday, March 21, 2026.

The players

Kalshi

A company that offers prediction markets and is sponsoring the $1 billion perfect bracket challenge for the 2026 NCAA Tournament.

Warren Buffett

Previously offered a $1 million prize for a perfect March Madness bracket through Quicken Loans.

Duke

One of the top-seeded teams in the 2026 NCAA Tournament.

Florida

The defending national champions, who are in a strong position to repeat as winners in 2026.

Arizona

One of the top-seeded teams in the 2026 NCAA Tournament.

Michigan

One of the top-seeded teams in the 2026 NCAA Tournament.

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What’s next

The NCAA Tournament begins on Tuesday, March 19, 2026, with the Kalshi bracket challenge officially starting two days later on Thursday, March 21.

The takeaway

The unprecedented $1 billion prize offered by Kalshi for a perfect March Madness bracket is sure to capture the attention of college basketball fans and drive increased engagement with the NCAA Tournament. While the odds of correctly predicting all 67 games are astronomically low, the massive potential payout will likely inspire many to try their luck and compete for the life-changing prize.