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%

BETA
Dashboards
Tour
All
Sports
U.S. Open: Round 1 Lowest Score
kalshi

U.S. Open: Round 1 Lowest Score

Volume:
$131,180

Under 67.5

 - Kalshi

Under 67.5 - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Jun 19, 2026

Closed: Jun 19, 9:26 AM EST

kalshi

Kalshi

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

Under 67.5

View
100%
Yes 100¢No 0¢
100¢
N/A
$49,997
N/A
N/A
$24,890
Settled
Yes
kalshi

Under 66.5

100%
Yes 100¢No 0¢
100¢
N/A
$18,947
N/A
N/A
$13,326
Settled
Yes
kalshi

Under 68.5

100%
Yes 100¢No 0¢
100¢
N/A
$13,615
N/A
N/A
$9,761
Settled
Yes
kalshi

Under 64.5

100%
Yes 100¢No 0¢
100¢
N/A
$12,522
N/A
N/A
$10,339
Settled
Yes
kalshi

Under 65.5

100%
Yes 100¢No 0¢
100¢
N/A
$11,675
N/A
N/A
$9,535
Settled
Yes
kalshi

Under 69.5

100%
Yes 100¢No 0¢
100¢
N/A
$7,313
N/A
N/A
$5,595
Settled
Yes
kalshi

Under 70.5

100%
Yes 100¢No 0¢
100¢
N/A
$1,939
N/A
N/A
$1,863
Settled
Yes
kalshi

Under 63.5

0%
Yes 0¢No 100¢
100¢
N/A
$15,173
N/A
N/A
$11,797
Settled
No
Total markets: 8

Description

These markets track whether any golfer will shoot an exceptionally low score in the first round of the 2026 U.S. Open championship. Each market represents a different scoring threshold, from under 69.5 strokes down to under 63.5 strokes, allowing bettors to wager on how dominant a performance might occur during Round 1 play.

Kalshi

Each market resolves to Yes if any golfer completes all 18 holes in an official regulation Round 1 of the 2026 U.S. Open with a score below the specified threshold. The seven markets establish progressive scoring benchmarks: under 69.5, under 68.5, under 67.5, under 66.5, under 65.5, under 64.5, and under 63.5 strokes. A golfer's round score is eligible for resolution only when the golfer completes the full 18-hole round under official regulation conditions. These markets function independently—resolution of one market does not affect the others. For example, if a golfer shoots 67 strokes, the markets with thresholds of 69.5, 68.5, and 67.5 would resolve to Yes, while those with lower thresholds would resolve to No. The markets capture the possibility of exceptional scoring performances at a major championship known for challenging course conditions.

Frequently asked questions

On Kalshi, the U.S. Open Round 1 lowest score market dashboard tracks real-time odds and historical price movement for this prediction market. The interface displays current implied probabilities, allowing traders to monitor how sentiment shifts as the tournament approaches. You can view cumulative trading volume and 24-hour activity to gauge market liquidity and engagement. The dashboard also logs all trades and order-book depth, giving you visibility into how the crowd is pricing the likelihood of different scoring outcomes during the opening round.

Prediction market odds often diverge from traditional analyst forecasts because they aggregate real-money bets from thousands of traders with direct financial incentives to be accurate. While sports analysts may rely on historical statistics and expert judgment, this market reflects live consensus pricing updated continuously as new information emerges. Comparing the two reveals where the crowd sees edge or disagreement—if prediction odds are significantly higher or lower than analyst consensus, it may signal either undervalued opportunities or crowd overconfidence. Both sources offer value, but their different methodologies often highlight blind spots.

On Kalshi, this market is priced through an order-book mechanism where traders buy and sell shares representing different outcomes. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Each share reflects a fractional claim on the final result, and the current bid-ask spread determines the live odds you see. Prices move as new orders flow in and existing positions are filled, creating a dynamic market that responds instantly to breaking news, player updates, or shifting expectations about Round 1 scoring. The platform's matching engine ensures transparent price discovery throughout the trading window.

This market resolves around Jun 20, 2026, once the U.S. Open Round 1 concludes and final scores are confirmed. The outcome is verified against credible public sources reporting the lowest score recorded during the opening round. Resolution occurs automatically once the event data is finalized and available, ensuring all traders receive payouts based on the actual result. Until that point, prices may fluctuate as players compete and real-time leaderboards update.

Several catalysts can shift odds before this market resolves. Player injuries or withdrawals announced before the tournament begins will immediately reprice expectations for the lowest score. Weather forecasts and course conditions released closer to Round 1 may favor certain playing styles or scores. Real-time leaderboard updates during the round itself will drive the most dramatic price swings as actual scores emerge and the field narrows. Breaking news about player form, equipment changes, or other competitive factors can also trigger meaningful repricing as traders adjust their positions.