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—Joaquin Niemann, Shane Lowry, or Alex Smalley—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 sportsbook odds often diverge because they reflect different participant bases and incentive structures. Sportsbooks set lines to balance action and manage risk, while prediction markets aggregate trader beliefs through continuous price discovery. This market may show higher or lower implied probabilities than traditional sportsbooks, depending on whether informed traders or casual bettors dominate activity. Comparing the two can reveal where the crowd's conviction differs from professional oddsmakers, though both sources offer valuable perspective on the likely outcome.
On Kalshi, this market is priced through an order-book mechanism where traders submit bids and asks, and the spread between them reflects the current market price. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. As more traders participate, prices adjust to reflect new information and shifting sentiment. The implied probability displayed on the platform is derived directly from the midpoint or last-traded price, so monitoring order flow and recent trades gives you insight into how the market is valuing the outcome at any given moment.
This market resolves around Jun 18, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The resolution hinges on the actual result of the 3-Ball competition involving Niemann, Lowry, and Smalley. Until that date, traders can continue to buy and sell shares as new information emerges. Once the event concludes and the outcome is established, the market will settle accordingly and trading will cease.
Several factors could shift prices in this market before resolution. Recent performance data, player form, and any injury updates or roster changes involving the three competitors may trigger significant moves. Media coverage, expert analysis, and betting action from informed participants can also influence trader confidence. As the event date approaches, increased attention and late-breaking news typically drive volatility. Monitoring golf news, player statements, and betting trends across the industry will help you anticipate how this market may evolve.