TOTAL VOLUME:
$134.2b
24H VOL:
$130,522,377
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,438,389,636
404,028
Markets across
30,214
events
MATCHED EVENTS:
2,681
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Sep 3, 1:53 PM EST
Kalshi
This event tracks the precise set scores in a specific tennis match between Naomi Osaka and Katerina Siniakova at the 2026 US Open. It focuses on whether the match concludes with either player winning by particular set margins. The outcome depends entirely on the final result of the match, should it take place.
The event settles based on the exact set score of the Naomi Osaka vs Katerina Siniakova match in the 2026 US Open Women Singles Round Of 64. Four possible outcomes are defined: Naomi Osaka winning 2-0, Naomi Osaka winning 2-1, Katerina Siniakova winning 2-1, or Katerina Siniakova winning 2-0. If the match does not commence due to injury, walkover, forfeiture, or cancellation before any ball is played, all markets resolve to a fair price. Postponements or delays keep markets open until the rescheduled match concludes, with settlement within two weeks. If a player retires during the match, markets that can be definitively settled based on completed play resolve accordingly, while unresolved markets settle at a fair market price determined by the Exchange. The Exchange disclaims any official affiliation with the governing league, and all trademarks remain property of their respective owners.