TOTAL VOLUME:
$134b
24H VOL:
$103,397,351
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,410,176,180
399,592
Markets across
30,097
events
MATCHED EVENTS:
2,622
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Sep 5, 11:04 PM EST
Kalshi
Two tennis players compete in a head-to-head match where the winner is determined by who claims victory after the first serve is struck. The outcome hinges purely on match performance from start to finish.
If Yuliia Starodubtseva wins the Starodubtseva vs Rybakina professional tennis match in the 2026 US Open Women Singles Round Of 32 after a ball has been played, then the market resolves to Yes. If Elena Rybakina wins the Starodubtseva vs Rybakina professional tennis match in the 2026 US Open Women Singles Round Of 32 after a ball has been played, then the market resolves to Yes.