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24H VOL:

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24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,416,970,024

400,720

Markets across

30,097

events

MATCHED EVENTS:

2,633

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

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American to win the 2026 US Open?
kalshi

American to win the 2026 US Open?

Volume:
$95,778

American man or woman to win US Open

 - Kalshi

American man or woman to win US Open - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Sep 13, 2026

Closed: Sep 13, 6:02 PM EST

kalshi

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

American man or woman to win US Open

View
0%
43%
Yes 0¢No 100¢
100¢
N/A
$43,015
N/A
N/A
$22,582
Settled
No
kalshi

American man to win US Open

0%
42%
Yes 0¢No 100¢
100¢
N/A
$42,560
N/A
N/A
$20,559
Settled
No
kalshi

American woman to win US Open

0%
41%
Yes 0¢No 100¢
100¢
N/A
$10,204
N/A
N/A
$6,166
Settled
No
Total markets: 3

Description

This event tracks whether a tennis player from the United States will claim either the men's or women's singles championship at the 2026 US Open. The outcome depends solely on the nationality of the tournament winners as recognized by official tennis governing bodies.

Kalshi

The event resolves to Yes if any American player—whether male or female—wins the singles title in either the men’s or women’s category at the 2026 US Open tennis tournament. Nationality is determined by the designations of the governing tennis league. All three sub-markets converge on this single condition: an American victory in either the men’s or women’s singles draw. The broader market encompasses the outcomes of the two more specific markets (American man or American woman), meaning if either of those narrower conditions is met, the overall event also resolves positively. Kalshi explicitly disclaims any official affiliation with the governing league, and all related trademarks remain property of their respective owners.

Frequently asked questions

This market resolves around Sep 15, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The winner is determined by official tournament declarations, and the market settles accordingly. Timing aligns with the conclusion of the 2026 US Open, ensuring a clear and timely resolution.