TOTAL VOLUME:
$134b
24H VOL:
$103,397,351
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,410,176,180
399,592
Markets across
30,097
events
MATCHED EVENTS:
2,622
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jun 18, 8:39 PM EST
Kalshi
Three professional golfers compete in a 3-ball matchup during the first round of the 2026 U.S. Open. The golfer with the lowest score for the round wins the matchup.
The winner of the 3-ball matchup is determined by the lowest score posted during the first round of the 2026 U.S. Open. If multiple participants tie for the lowest score at the end of the round, the Yes payout is divided equally among all tied participants, with each receiving $1/N rounded down to the nearest cent, where N equals the number of tied participants. The No payout equals $1 minus the Yes payout. If any golfer withdraws prior to teeing off, all markets resolve to fair market value.
Prediction market odds and sportsbook odds often diverge because they reflect different participant bases and incentive structures. Sportsbooks set lines to balance action and lock in profit margins, while prediction markets aggregate the beliefs of traders risking real capital on outcomes. This market may price the matchup differently than traditional golf sportsbooks because traders here have direct financial exposure to the result. Comparing the two can reveal where one venue sees value the other has missed, though both aim to reflect underlying probabilities.
On Kalshi, this market is priced through continuous order-book trading, where buyers and sellers submit bids and offers that determine the real-time odds for each outcome. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Traders can enter or exit positions at any time before the market closes, and the price you see reflects the most recent consensus between active participants. The platform's matching engine executes trades instantly, so the quoted odds shift as new information or sentiment emerges about the three golfers' likely performance in the first round.
This market resolves around Jun 18, 2026, once the first round of the PGA Tour event concludes and results are verified against credible public sources. The outcome is determined by the actual performance and finishing positions of Schmid, Cauley, and Shipley during their 3-ball grouping. Once the round is complete and official scoring is published, the market will settle based on which player or outcome the market contract specified, and all open positions will be closed at the final resolved price.
Several factors could shift odds before Jun 18, 2026: recent form and tournament results for each player, weather conditions at the course, course setup changes, injury reports or late withdrawals, and betting action from sharp money or public sentiment. Live scoring during the round itself will drive the most dramatic moves, as traders react to how each golfer performs on individual holes. Pre-round news—such as a player's confidence level, caddie changes, or equipment adjustments—can also trigger repricing as new information becomes available to the market.