TOTAL VOLUME:
$134b
24H VOL:
$107,351,958
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,416,970,024
400,720
Markets across
30,097
events
MATCHED EVENTS:
2,633
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Aug 4, 3:42 PM EST
Kalshi
Two professional tennis players compete in a match where the outcome of the first set determines the early lead. The event focuses specifically on which player will claim victory in that opening set.
If Marta Kostyuk wins set 1 in the Marta Kostyuk vs Katherine Sebov professional tennis match in the 2026 WTA Toronto Round Of 64, then the market resolves to Yes. If Katherine Sebov wins set 1 in the Marta Kostyuk vs Katherine Sebov professional tennis match in the 2026 WTA Toronto Round Of 64, then the market resolves to Yes.