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%

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Ben Shelton vs Carlos Alcaraz: Set 1 Winner
kalshi

Ben Shelton vs Carlos Alcaraz: Set 1 Winner

Volume:
$1,666,725

Carlos Alcaraz

 - Kalshi

Carlos Alcaraz - Kalshi

1W

News

Positive

Negative

Neutral

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Vol.

·

Resolved Sep 9, 2026

Closed: Sep 9, 12:08 AM 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

Carlos Alcaraz

View
100%
32%
Yes 100¢No 0¢
100¢
N/A
$889,451
N/A
N/A
$558,776
Settled
Yes
kalshi

Ben Shelton

0%
34%
Yes 0¢No 100¢
100¢
N/A
$777,274
N/A
N/A
$528,978
Settled
No
Total markets: 2

Description

This market focuses on predicting which player will win the first set of a professional tennis match between Ben Shelton and Carlos Alcaraz at the 2026 US Open Men Singles Quarterfinal. The outcome depends solely on the result of the first set, regardless of the overall match result. Special provisions address scenarios where the match might not proceed as scheduled.

Kalshi

The market resolves based on which player wins the first set of the specified professional tennis match. If the match does not commence due to injury, walkover, forfeiture, or cancellation before any ball is played, the market settles at a fair price. Postponements or delays allow the market to remain open until the rescheduled match concludes, with settlement occurring within two weeks after the match finishes. In cases of retirement during the match, any markets that can be definitively settled based on completed play will do so, while unresolved markets will settle at a fair market price determined by the Exchange. Kalshi clarifies it holds no official affiliation with the governing league, and all trademarks remain property of their respective owners.