kalshi Sports

Will Brooks Koepka win the U.S. Open?

Brooks Koepka
Closes Jul 05, 2026 (17d) 24h volume 491.6K Open interest 1.6M Event U.S. Open Winner
2%
implied YES probability

Top of book

BidSizeAskSize
1.6¢ 49011 1.7¢ 210677
1.5¢ 23480 1.8¢ 462553
1.3¢ 300 1.9¢ 407684
1.2¢ 1891 2.0¢ 265782
1.0¢ 53613 2.1¢ 50710
Spread 0.1¢ · Mid 1.7¢

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