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Story summary
- Kalshi is offering a $1 billion challenge for a perfect bracket in the 2026 NCAA Men's Basketball Tournament.
- Participants must register and verify their identity to enter for free, with odds of a perfect bracket at 1 in 9.2 quintillion.
- If no perfect bracket is submitted, the highest-scoring bracket will win $1 million.
- The contest will also donate $1 million to charities.
- It is open to U.S. residents aged 18 and older, with a submission deadline of March 19, 2026, at 1:00 PM ET.
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