TOTAL VOLUME:
$134.1b
24H VOL:
$133,388,117
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,436,095,462
405,232
Markets across
30,526
events
MATCHED EVENTS:
2,693
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Aug 30, 4:41 PM EST
Kalshi
Another pair of professional tennis players will face off in a first-round match at the 2026 US Open. The outcome depends entirely on which athlete secures the match win after play officially commences.
Markets resolve to Yes solely if the designated player wins the match after play has begun. Should the match fail to start due to injury, walkover, forfeiture, or other cancellations before any ball is played, the market resolves to a fair price. Any postponement or delay keeps the market active until the rescheduled match finishes within two weeks. Kalshi explicitly states no official connection with the governing league, and all trademarks belong to their respective owners.