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Kalshi Launches $1 Billion March Madness Perfect-Bracket Challenge

The free contest doubles as a probability lesson with the prize risk insured by SIG Parametrics.

Overview

  • Entrants must create and verify a Kalshi account, submit one bracket before tournament play begins on March 19, and pay no entry fee.
  • A perfect 63-game bracket wins $1 billion, while the top non-perfect bracket earns $1 million if no one goes 63-for-63.
  • Kalshi will donate $500,000 each to iMentor and Devin Booker’s Starting Five charity as part of the promotion.
  • Kalshi characterizes the giveaway as a lesson in extreme odds, with estimates ranging from 1 in 120 billion for informed picks to 1 in 9.2 quintillion at random.
  • The promotion is financially backed by SIG Parametrics, and some outlets report the prize would be paid upfront, a detail not broadly corroborated.