TOTAL VOLUME:

$134.2b

24H VOL:

$134,145,987

24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,441,166,947

406,422

Markets across

30,383

events

MATCHED EVENTS:

2,688

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

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1st Round 3-Ball: Sveinsson/Rozo/Sato
kalshi

1st Round 3-Ball: Sveinsson/Rozo/Sato

Volume:
$68

Marcelo Rozo beats Sveinsson and Sato

 - Kalshi

Marcelo Rozo beats Sveinsson and Sato - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Jun 19, 2026

Closed: Jun 19, 8:20 AM EST

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Kalshi

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Join Kalshi and score $25 for your first trade.
Outcome
Trade
Chance %
Price
Spread
Liquidity
Volume
24h
7d
Open Interest
Ends in
Result
kalshi

Marcelo Rozo beats Sveinsson and Sato

View
100%
Yes 100¢No 0¢
100¢
N/A
$8
N/A
N/A
$4
Settled
Yes
kalshi

Taihei Sato beats Sveinsson and Rozo

0%
Yes 0¢No 100¢
100¢
N/A
$55
N/A
N/A
$55
Settled
No
kalshi

Arni Sveinsson beats Rozo and Sato

0%
Yes 0¢No 100¢
100¢
N/A
$5
N/A
N/A
$5
Settled
No
Total markets: 3

Description

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.

Kalshi

The winner of the 3-ball matchup is determined by the lowest score achieved during the 1st round of the 2026 U.S. Open. If multiple participants are tied for the lowest score at the end of the round, the Yes payout is divided equally among all tied participants, calculated as $1 divided by the number of tied participants and rounded down to the nearest cent, with the No payout equal to $1 minus the Yes payout. If any golfer withdraws prior to teeing off, all markets resolve to fair market value.

Frequently asked questions

On Kalshi, the dashboard for the 1st Round 3-Ball golf match displays real-time odds and price movements as traders position themselves on the outcome involving Sveinsson, Rozo, and Sato. The interface shows current market prices, historical price trends, and trading activity to help you monitor how sentiment shifts as the event approaches. You can track cumulative volume and observe which outcomes attract the most trader interest, giving you insight into the collective prediction of the market participant base on this single venue.

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 the beliefs of traders risking real capital. This market's odds may lead or lag sportsbook lines depending on information flow and trader conviction. Comparing the two can reveal where professional oddsmakers and decentralized traders disagree, potentially signaling value or consensus shifts in how the golf match is perceived.

On Kalshi, this market is priced through an order-book mechanism where traders buy and sell shares corresponding to each possible outcome. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The price of each outcome reflects the collective willingness of traders to commit capital, with higher prices indicating stronger belief in that result. As new information emerges or trader sentiment shifts, the bid-ask spread adjusts, and prices move to equilibrate supply and demand across all three competitors in the 1st Round 3-Ball match.

This market resolves around Jun 18, 2026, once the 1st Round 3-Ball match concludes and the result is verified against credible public sources. The outcome is determined by the official result of the golf competition, confirmed through established reporting channels. Until that point, traders can continue to buy and sell positions as new developments or performance data emerge, allowing the market price to reflect evolving expectations right up to the resolution deadline.

Several factors may shift trader positioning before resolution. Recent form and scoring trends for Sveinsson, Rozo, and Sato can trigger repricing as new tournament data surfaces. Course conditions, weather forecasts, and any injury or withdrawal announcements will likely prompt rapid market adjustments. Media coverage and expert commentary may also influence trader confidence. Additionally, live scoring during the round itself will drive continuous price movement as the match unfolds, with each shot and leaderboard update potentially reshaping the odds in real time.