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If Jordan Spieth is determined to have won the 3-ball matchup among Jordan Spieth, Justin Rose, and Brooks Koepka in the 1st round of the 2026 Masters Tournament, then the market resolves to Yes.
As of April 8, 2026, the Kalshi odds for Will Brooks Koepka win the 1st round 3-ball matchup? are: Brooks Koepka beats Spieth and Rose: 36%, Justin Rose beats Koepka and Spieth: 2%, Jordan Spieth beats Rose and Koepka: 2%. These probabilities are derived from real-money trading and update in real time.
Will Brooks Koepka win the 1st round 3-ball matchup? 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.
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