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Stoiana vs. Siniakova: Set 2 Games O/U 10.5

Under50%
Over50%

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24h volume—
7d volume—
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Liquidity$19
Spread96%
ResolvesOct 30, 2026in 5 days

Probability history

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Probability history0%25%50%75%100%Oct 22, 09:51 AMOct 22, 04:48 PMOct 22, 11:45 PMOct 23, 06:42 AMShaded periods have no successful hourly price check.Shaded periods have no successful hourly price check.Shaded periods have no successful hourly price check.Shaded periods have no successful hourly price check.Shaded periods have no successful hourly price check.Shaded periods have no successful hourly price check.Shaded periods have no successful hourly price check.Shaded periods have no successful hourly price check.Shaded periods have no successful hourly price check.Shaded periods have no successful hourly price check.Shaded periods have no successful hourly price check.Shaded 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 Mary Stoiana and Katerina Siniakova in the Japan Women's Open, originally scheduled for October 23, 2026 at 1:30AM ET. This market will resolve to "Over" if the total number of games completed in set 2 equals or exceeds 11. Otherwise, it will resolve to "Under." Any tiebreak in set 2 counts as one (1) game toward the total. If set 2 begins but is not completed, 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 or played as a match tiebreak. For example, for a line of 9.5, if play stops with set 2 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. If the match ends before set 2 is reached, this market will resolve 50-50. If the match is canceled before play begins, or play has not begun by November 6, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50. Resolution will be based on official WTA results. 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.wtatennis.com/scores

Other legs of this event

MarketVenuePriceStatus
Japan Women's Open: Mary Stoiana vs Katerina SiniakovaPolymarket100% Katerina SiniakovaOpen
Japan Women's Open: Completed Match: Mary Stoiana vs Katerina SiniakovaPolymarket100% YesOpen
Stoiana vs. Siniakova: Match O/U 21.5Polymarket100% UnderOpen
Set 2 Winner: Mary Stoiana vs Katerina SiniakovaPolymarket69% Katerina SiniakovaOpen
Stoiana vs. Siniakova: Set 1 Games O/U 10.5Polymarket50% OverOpen
Stoiana vs. Siniakova: Match O/U 22.5Polymarket64% UnderOpen
Stoiana vs. Siniakova: Set 1 Games O/U 9.5Polymarket50% UnderOpen
Set Handicap: Katerina Siniakova (-1.5) vs Mary Stoiana (+1.5)Polymarket60% Katerina SiniakovaOpen
Stoiana vs. Siniakova: Match O/U 23.5Polymarket72% UnderOpen
Stoiana vs. Siniakova: Set 2 Games O/U 8.5Polymarket50% UnderOpen
Stoiana vs. Siniakova: Set 2 Games O/U 9.5Polymarket50% OverOpen
Mary Stoiana vs. Katerina Siniakova: Total Sets O/U 2.5Polymarket69% Under 2.5Open
Stoiana vs. Siniakova: Set 1 Games O/U 8.5Polymarket50% UnderOpen
Set 1 Winner: Mary Stoiana vs Katerina SiniakovaPolymarket83% Katerina SiniakovaOpen
Game Spread: Katerina Siniakova (-3.5) vs Mary Stoiana (+3.5)Polymarket50% Mary StoianaOpen

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As of Oct 24, 07:16 PM UTC