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If the number of teams achieving an upset (based on seeding) in the Round of 8 of the men's college basketball tournament is exactly 4, then the market resolves to Yes.
As of March 18, 2026, the Kalshi odds for Will there be at least 1 upset in the Round of 8? are: 1+ upsets: 80%, 2+ upsets: 41%, 3+ upsets: 14%, 4 upsets: 6%. These probabilities are derived from real-money trading and update in real time.
Will there be at least 1 upset in the Round of 8? is currently available on Kalshi. Check PredictMarketCap for cross-platform availability as new markets are added regularly.
Prediction market odds reflect the aggregate opinion of traders who risk real money on outcomes. The price of a share (e.g., 65¢) represents the market's implied probability (65%). Prices move as traders buy and sell based on new information, polls, and analysis.