This market refers to the tennis match between Gauthier Onclin and Vitaliy Sachko in the US Open, Qualification ATP, originally scheduled for August 25, 2026 at 11:00AM ET.
This market will resolve to 'Gauthier Onclin' if Gauthier Onclin advances against Vitaliy Sachko.
This market will resolve to 'Vitaliy Sachko' if Vitaliy Sachko advances against Gauthier Onclin.
If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 8, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve to 50-50.
If the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances.
If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50.
The primary resolution source will be official information from the ATP Tour. A consensus of credible reporting may also be used.
US Open, Qualification ATP: Gauthier Onclin vs Vitaliy Sachko
ATP
Vitaliy Sachko77
Gauthier Onclin55Final
Game context
Gauthier Onclin enters the US Open qualifying first round as the clear favorite against Vitaliy Sachko on outdoor hard courts, backed by his ATP ranking of 158 versus Sachko’s 188, a stronger 2026 win rate exceeding 70 percent in recent matches, and a 2-0 head-to-head edge that includes victories on hard and clay. Onclin has posted consistent Challenger results on hard surfaces this summer while climbing to a career-high ranking, whereas Sachko has struggled with a sub-50 percent win rate in his past 10 outings and multiple qualifying losses on clay. The surface and Onclin’s edge in recent form and deciding-set reliability underpin trader consensus favoring the Belgian to advance.
Moneyline
$312.4K Vol.Match Completed
$354 Vol.1st Set Winner
$1.6K Vol.1st Set Total
$5 Vol.US Open, Qualification ATP: Gauthier Onclin vs Vitaliy Sachko Set 1 O/U 8.5
US Open, Qualification ATP: Gauthier Onclin vs Vitaliy Sachko Set 1 O/U 9.5
US Open, Qualification ATP: Gauthier Onclin vs Vitaliy Sachko Set 1 O/U 10.5
Set Total
US Open, Qualification ATP: Gauthier Onclin vs Vitaliy Sachko Set 2 O/U 8.5
US Open, Qualification ATP: Gauthier Onclin vs Vitaliy Sachko Total Sets: O/U 2.5
US Open, Qualification ATP: Gauthier Onclin vs Vitaliy Sachko Set 2 O/U 9.5
US Open, Qualification ATP: Gauthier Onclin vs Vitaliy Sachko Set 2 O/U 10.5
Total Games
US Open, Qualification ATP: Gauthier Onclin vs Vitaliy Sachko Match O/U 21.5
US Open, Qualification ATP: Gauthier Onclin vs Vitaliy Sachko Match O/U 22.5
US Open, Qualification ATP: Gauthier Onclin vs Vitaliy Sachko Match O/U 23.5
Set Handicap
$211 Vol.US Open, Qualification ATP: Gauthier Onclin vs Vitaliy Sachko Set Handicap +/-1.5
US Open, Qualification ATP: Gauthier Onclin vs Vitaliy Sachko Set Handicap +/-1.5
Set Winner
$20 Vol.More Bets
Resolution Source: www.atptour.com
Odds & FAQ
What are the current odds for US Open, Qualification ATP: Gauthier Onclin vs Vitaliy Sachko?
Completed Match dominates the field at 99%; the nearest challenger, US Open, Qualification ATP: Gauthier Onclin vs Vitaliy Sachko Set 1 O/U 8.5, trades at just 99%. The order book treats this as nearly decided.
What do traders predict for US Open, Qualification ATP: Gauthier Onclin vs Vitaliy Sachko?
With 99% implied for Completed Match, the market has largely made up its mind. Still a forecast, not a result: prices react instantly if the story changes.
When does the US Open, Qualification ATP: Gauthier Onclin vs Vitaliy Sachko market resolve?
Mark 1 Sep 2026 (7 days left): that's when this market is due to resolve, following Polymarket's published criteria once the result is verified.
How much money is trading on US Open, Qualification ATP: Gauthier Onclin vs Vitaliy Sachko?
Traders have put $16.4M through this market so far - a solid gauge of how much real money backs these odds.
How can I trade US Open, Qualification ATP: Gauthier Onclin vs Vitaliy Sachko on Polymarket?
You can watch the odds move here in real time and trade the market directly on Polymarket. As always, prediction trading carries real risk.
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