| Outcome |  Polymarket | Kalshi | Spread | |
|---|---|---|---|---|
C Cincinnati Open, Qualification: Yue Yuan vs Kayla Day Set 1 WinnerWinner | 100%— | - | - | |
C Cincinnati Open: Janice Tjen vs Viktorija Golubic Match O/U 22.5Winner | 100%— | - | - | |
C Cincinnati Open: Marta Kostyuk vs Sofia KeninWinner | 100%— | - | - | |
C Cincinnati Open: Katerina Siniakova vs Jessica Bouzas ManeiroWinner | 100%— | - | - | |
C Cincinnati Open: Katerina Siniakova vs Jessica Bouzas Maneiro Match O/U 21.5Winner | 100%— | - | - | |
C Cincinnati Open: Linda Noskova vs Clara TausonWinner | 100%— | - | - | |
C Cincinnati Open: Katie Boulter vs Katie Volynets Set 1 WinnerWinner | 100%— | - | - | |
C Cincinnati Open: Xinyu Wang vs Donna VekicWinner | 100%— | - | - | |
C Cincinnati Open: Aryna Sabalenka vs Talia GibsonWinner | 100%— | - | - | |
C Cincinnati Open: Daria Snigur vs Yulia StarodubtsevaWinner | 100%— | - | - | |
C Cincinnati Open: Jessica Bouzas Maneiro vs Anna BondarWinner | 100%— | - | - | |
C Cincinnati Open: Emma Navarro vs Anhelina KalininaWinner | 100%— | - | - | |
C Cincinnati Open, Qualification: Lilli Tagger vs Robin MontgomeryWinner | 100%— | - | - | |
C Cincinnati Open: Marie Bouzkova vs Iva Jovic Set 1 O/U 8.5 | 68%— | 1%settled | - | |
C Cincinnati Open: Emma Navarro vs Jessica Pegula Set 1 O/U 8.5 | 67%— | - | - | |
C Cincinnati Open: Tereza Valentova vs Elina Svitolina Match O/U 21.5 | 67%— | - | - | |
C Cincinnati Open: Antonia Ruzic vs Magdalena Frech Set 1 O/U 8.5 | 59%— | - | - | |
C Cincinnati Open: Taylor Townsend vs Camila Osorio Match O/U 21.5Winner | 100%— | 100%settled | - | |
C Cincinnati Open: Coco Gauff vs Liudmila Samsonova Set Handicap +/-1.5 | 51%— | - | - | |
C Cincinnati Open: Maria Timofeeva vs Katerina Siniakova Set 1 O/U 8.5 | 51%— | - | - | |
C Cincinnati Open, Qualification: Alina Korneeva vs Alina Charaeva | 51%— | - | - | |
C Cincinnati Open: Xiyu Wang vs Elina Svitolina | 51%— | - | - | |
C Completed Match | 50%— | - | - | |
C Cincinnati Open: Maria Timofeeva vs Katerina Siniakova Set 2 O/U 8.5 | 50%— | - | - | |
C Cincinnati Open: Tamara Korpatsch vs Iva Jovic Match O/U 21.5 | 50%— | - | - | |
C Cincinnati Open: Maria Timofeeva vs Katerina Siniakova Set 1 O/U 10.5 | 0%— | - | - | |
C Cincinnati Open: Maria Timofeeva vs Katerina Siniakova Set 1 Winner | 0%— | - | - | |
C Cincinnati Open: Xinyu Wang vs Hanne Vandewinkel Set 1 Winner | 0%— | - | - | |
C Cincinnati Open: Katerina Siniakova vs Madison Keys Match O/U 21.5 | 0%— | - | - | |
C Cincinnati Open: Caty McNally vs McCartney Kessler Total Sets: O/U 2.5 | 0%— | - | - | |
C Cincinnati Open: Jessica Bouzas Maneiro vs Anna Bondar Set Handicap +/-1.5 | 0%— | - | - | |
C Cincinnati Open: Tereza Valentova vs Elina Svitolina Set Handicap +/-1.5 | 0%— | - | - | |
C Cincinnati Open: Shuai Zhang vs Ann Li | 0%— | - | - | |
C Cincinnati Open: Alexandra Eala vs Amanda Anisimova | 0%— | - | - | |
N National Bank Open: Elina Svitolina vs Iga Swiatek Set Handicap +/-1.5 | 0%— | - | - | |
C Cincinnati Open: Janice Tjen vs Viktorija Golubic Set Handicap +/-1.5 | 0%— | - | - | |
C Cincinnati Open, Qualification: Aoi Ito vs Harriet Dart | 0%— | - | - | |
C Cincinnati Open: Anna Blinkova vs Ekaterina Alexandrova | 0%— | - | - | |
C Cincinnati Open: Tamara Korpatsch vs Iva Jovic | 0%— | - | - | |
C Cincinnati Open: Leylah Fernandez vs Xiyu Wang | 0%— | - | - | |
C Cincinnati Open: Tamara Korpatsch vs Iva Jovic Set 1 Winner | 0%— | - | - | |
C Cincinnati Open, Qualification: Eva Lys vs Anna Blinkova | 0%— | - | - | |
C Cincinnati Open: Cristina Bucsa vs Maja Chwalinska | 0%— | - | - | |
C Cincinnati Open, Qualification: Yue Yuan vs Kayla Day | 0%— | - | - | |
C Cincinnati Open: Tereza Valentova vs Elina Svitolina | 0%— | - | - | |
C Cincinnati Open: Daria Snigur vs Madison Keys | 0%— | - | - | |
C Cincinnati Open: Emma Navarro vs Jessica Pegula | 0%— | - | - | |
C Cincinnati Open, Qualification: Oksana Selekhmeteva vs Mary Stoiana | 0%— | - | - | |
C Cincinnati Open: Lilli Tagger vs Talia Gibson | 0%— | - | - |
Background, methodology, and platform context
WTA has resolved with Cincinnati Open, Qualification: Yue Yuan vs Kayla Day Set 1 Winner, Cincinnati Open: Janice Tjen vs Viktorija Golubic Match O/U 22.5, Cincinnati Open: Marta Kostyuk vs Sofia Kenin, Cincinnati Open: Katerina Siniakova vs Jessica Bouzas Maneiro, Cincinnati Open: Katerina Siniakova vs Jessica Bouzas Maneiro Match O/U 21.5, Cincinnati Open: Linda Noskova vs Clara Tauson, Cincinnati Open: Katie Boulter vs Katie Volynets Set 1 Winner, Cincinnati Open: Xinyu Wang vs Donna Vekic, Cincinnati Open: Aryna Sabalenka vs Talia Gibson, Cincinnati Open: Daria Snigur vs Yulia Starodubtseva, Cincinnati Open: Jessica Bouzas Maneiro vs Anna Bondar, Cincinnati Open: Emma Navarro vs Anhelina Kalinina, Cincinnati Open, Qualification: Lilli Tagger vs Robin Montgomery and Cincinnati Open: Taylor Townsend vs Camila Osorio Match O/U 21.5 as the winners. $10.23M was traded across Polymarket and Kalshi on 49 outcomes. This page preserves the final odds comparison for historical reference.
Descriptions normalized for comparison (outcome names replaced with [OUTCOME])
This market refers to the tennis match between Yue Yuan and Kayla Day in the Cincinnati Open, Qualification, originally scheduled for August 12, 2026 at 10:00AM ET. This market will resolve to “Yuan” if Yue Yuan wins the first set. It will resolve to “Day” if Kayla Day wins the first set. If the match begins but is not completed, and the first set is concluded with a winner determined, this market will resolve based on that completed set. If the first set is not completed for any reason, this market will resolve 50-50. If the match is canceled (not played at all) or is delayed beyond 7 days from the scheduled date without play beginning, this market will resolve 50-50. Resolution will be based on official WTA match statistics.
If Taylor Townsend wins the Bouzkova vs Townsend professional tennis match in the 2026 WTA Rome Round Of 64 after a ball has been played, then the market resolves to Yes.
Different platforms may use different resolution criteria, data sources, and settlement timelines.
