TOTAL VOLUME:
$134.1b
24H VOL:
$141,541,542
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,440,096,988
406,065
Markets across
30,522
events
MATCHED EVENTS:
2,692
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Aug 25, 12:59 PM EST
Kalshi
Sebastian Ofner and Kei Nishikori will compete in the 2026 US Open Men Singles Round Of 128, with their match structured as a best-of-five sets. The aggregate number of games played across all sets will be used to evaluate several over/under conditions.
All markets pertain to the Sebastian Ofner vs Kei Nishikori professional tennis match in the 2026 US Open Men Singles Round Of 128. Should the match not commence due to injury, walkover, forfeiture, or other pre-play cancellations, markets resolve to a fair price. Postponements or delays maintain open markets until the rescheduled match concludes within two weeks. In the event of a retirement, markets that can be settled based on completed play resolve accordingly, while unresolved markets resolve to Fair Market Price at the Exchange's discretion. The Exchange is not affiliated with the Governing League, and all trademarks are property of their respective owners.