PolymarketOpen

Gueymard-Wayenburg vs. Onclin: Set 1 Games O/U 8.5

Under59%
Over42%

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24h volume—
7d volume—
30d volume—
Liquidity$472.6
Spread4%
ResolvesOct 8, 2026in 8 days

Probability history

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Shaded periods have no successful hourly price check.

Probability history0%25%50%75%100%Sep 29, 04:50 AMSep 29, 02:35 PMSep 30, 12:20 AMSep 30, 10:05 AMShaded periods have no successful hourly price check.

Based on this market’s outcome prices, expressed as probabilities.

Resolution rules

This market refers to the tennis match between Sascha Gueymard-Wayenburg and Gauthier Onclin in the Mouilleron-Le-Captif, originally scheduled for October 1, 2026 at 4:00AM ET. This market will resolve to "Over" if the total number of games completed in the first set equals or exceeds 9. Otherwise, it will resolve to "Under." Any first-set tiebreak counts as one (1) game. If the match is postponed or suspended, this market will remain open until the first set has been completed. A postponement alone will not trigger a 50-50 resolution. If the match is permanently abandoned before the first set is completed, or if the first set has not been completed by October 15, 2026, 11:59 PM ET, this market will resolve 50-50, unless the outcome has already been unconditionally determined based on completed play. An outcome is considered unconditionally determined if it would have been guaranteed under every possible completion of the set played according to the match format published by the tournament organizer for that round, including whether the set is decided by a tiebreak. For example, for a line of 9.5, if play stops with the first set at 5-4, completing the set would have required at least 1 additional game, resulting in at least 10 games played, so "Over" would resolve as the winning outcome. The primary resolution source for this market will be official Challenger statistics; however, a consensus of credible reporting may also be used. This market may resolve only when the listed period of play has concluded and the result can be definitively determined by the listed resolution source(s).

Sourcehttps://www.atptour.com/en/scores/current

Other legs of this event

MarketVenuePriceStatus
Gueymard-Wayenburg vs. Onclin: Set 2 Games O/U 9.5Polymarket51% UnderOpen
Gueymard-Wayenburg vs. Onclin: Match O/U 21.5Polymarket55% OverOpen
Sascha Gueymard-Wayenburg vs. Gauthier Onclin: Total Sets O/U 2.5Polymarket62% Under 2.5Open
Gueymard-Wayenburg vs. Onclin: Match O/U 23.5Polymarket57% UnderOpen
Set Handicap: Sascha Gueymard-Wayenburg (-1.5) vs Gauthier Onclin (+1.5)Polymarket60% Gauthier OnclinOpen
Gueymard-Wayenburg vs. Onclin: Set 1 Games O/U 9.5Polymarket51% OverOpen
Gueymard-Wayenburg vs. Onclin: Set 1 Games O/U 10.5Polymarket62% OverOpen
Gueymard-Wayenburg vs. Onclin: Set 2 Games O/U 10.5Polymarket51% UnderOpen
Gueymard-Wayenburg vs. Onclin: Set 2 Games O/U 8.5Polymarket51% UnderOpen
Set 1 Winner: Sascha Gueymard-Wayenburg vs Gauthier OnclinPolymarket58% Sascha Gueymard-WayenburgOpen
Gueymard-Wayenburg vs. Onclin: Match O/U 22.5Polymarket53% UnderOpen
Set 2 Winner: Sascha Gueymard-Wayenburg vs Gauthier OnclinPolymarket51% Sascha Gueymard-WayenburgOpen
Game Spread: Sascha Gueymard-Wayenburg (-3.5) vs Gauthier Onclin (+3.5)Polymarket67% Sascha Gueymard-WayenburgOpen
Mouilleron-Le-Captif: Completed Match: Sascha Gueymard-Wayenburg vs Gauthier OnclinPolymarket53% YesOpen
Mouilleron-Le-Captif: Sascha Gueymard-Wayenburg vs Gauthier OnclinPolymarket62% Sascha Gueymard-WayenburgOpen

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As of Sep 30, 10:36 AM UTC