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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Gauthier Onclin vs Vitaliy Sachko: Total Games
kalshi

Gauthier Onclin vs Vitaliy Sachko: Total Games

Volume:
$3,948

Over 21.5 games

 - Kalshi

Over 21.5 games - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Aug 25, 2026

Closed: Aug 25, 3:04 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 21.5 games

View
100%
45%
Yes 100¢No 0¢
100¢
N/A
$2,567
N/A
N/A
$2,368
Settled
Yes
kalshi

Over 16.5 games

100%
Yes 100¢No 0¢
100¢
N/A
$564
N/A
N/A
$564
Settled
Yes
kalshi

Over 26.5 games

0%
Yes 0¢No 100¢
100¢
N/A
$817
N/A
N/A
$625
Settled
No
Total markets: 3

Description

Gauthier Onclin and Vitaliy Sachko will face off in the 2026 US Open Men Singles Round Of 128, playing a best-of-five set match where the cumulative games played will set the basis for multiple betting thresholds.

Kalshi

All markets refer to the Gauthier Onclin vs Vitaliy Sachko professional tennis match in the 2026 US Open Men Singles Round Of 128. If the match does not occur due to a player injury, walkover, forfeiture, or any cancellation before the first ball is played, markets resolve to a fair price. Postponements or delays keep markets open until the rescheduled match finishes within two weeks. If a retirement occurs, markets based on completed play settle accordingly, while others resolve to Fair Market Price determined by the Exchange. The Exchange holds no official affiliation with the Governing League, and all trademarks belong to their respective owners.