TOTAL VOLUME:

$134b

24H VOL:

$103,397,351

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2,388,728,490

OPEN INTEREST:

$1,410,176,180

399,592

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30,097

events

MATCHED EVENTS:

2,622

PLATFORM COVERAGE:

5

Polymarket:

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VS.

Kalshi:

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Stefanos Sakellaridis vs Christopher O'Connell: Total Games
kalshi

Stefanos Sakellaridis vs Christopher O'Connell: Total Games

Volume:
$5,171

Over 24.5 games

 - Kalshi

Over 24.5 games - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Aug 25, 2026

Closed: Aug 25, 5:13 PM 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

Over 24.5 games

View
0%
Yes 0¢No 100¢
100¢
N/A
$3,400
N/A
N/A
$2,763
Settled
No
kalshi

Over 19.5 games

View
0%
93%
Yes 0¢No 100¢
100¢
N/A
$1,355
N/A
N/A
$984
Settled
No
kalshi

Over 29.5 games

View
0%
11%
Yes 0¢No 100¢
100¢
N/A
$416
N/A
N/A
$416
Settled
No
Total markets: 3

Description

These markets evaluate how long a specific tennis match will last by counting the total games played. Bettors predict whether the match will extend beyond certain game thresholds. The outcomes depend purely on the actual gameplay, with adjustments made for match disruptions.

Kalshi

The markets determine whether the total number of completed games in the Stefanos Sakellaridis vs Christopher O'Connell professional tennis match at the 2026 US Open Men Singles Round Of 128 exceeds specified thresholds of 19.5, 24.5, or 29.5 games. If the match does not commence due to injury, walkover, forfeiture, or cancellation before play begins, all markets resolve to a fair price. Postponements or delays keep markets open until the rescheduled match concludes, with resolution within two weeks after completion. In cases of retirement during the match, markets that can be settled based on completed play resolve accordingly, while unresolved markets 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.