TOTAL VOLUME:
$134.1b
24H VOL:
$113,466,932
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,423,222,590
402,751
Markets across
30,217
events
MATCHED EVENTS:
2,632
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jun 19, 7:50 AM EST
Kalshi
In a 3-ball golf competition format, three golfers compete together during the first round of the 2026 U.S. Open. The golfer with the lowest score for the round wins the 3-ball matchup. This market resolves based on which of the three competitors—Corey Conners, Ryan Fox, or Ryo Hisatsune—posts the best score.
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 two or more participants tie for the lowest score, 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 before teeing off, all markets resolve to fair market value.
Prediction market odds and traditional sportsbook odds often diverge because they reflect different participant bases and incentive structures. Sportsbooks set odds to balance liability and profit margin, while prediction markets like this one are driven by trader consensus and real money at stake. This market may show different implied probabilities than major sportsbooks, particularly as new information surfaces or as the event approaches. Comparing the two can reveal where the crowd's view differs from professional oddsmakers, though both aim to reflect true competitive likelihood.
On Kalshi, this market is priced through an order-book mechanism where traders buy and sell shares representing each outcome. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The price of each share reflects the collective belief in that player's probability of winning the matchup. As traders submit bids and asks, the market price adjusts in real time. Liquidity and trading volume influence how tightly prices are quoted; higher activity typically narrows spreads and improves price discovery for all participants.
This market resolves around Jun 18, 2026, once the first round is complete and the results are verifiable from credible public sources. The outcome is determined by which player finishes with the lowest score in the three-ball group. Until that point, this market remains open for trading, allowing participants to adjust positions based on live play, weather, or other developments during the tournament round.
Several factors can shift odds in this market before resolution. Recent tournament performance, practice-round reports, and course-fit analysis often trigger early repricing. Weather forecasts—particularly wind and rain—can favor certain playing styles. Injury updates or late withdrawals would have immediate impact. During the round itself, live scoring creates continuous repricing as each player's position relative to the others changes. Betting action from sharp money or public sentiment can also drive meaningful moves in either direction.