TOTAL VOLUME:
$134.2b
24H VOL:
$134,145,987
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,441,166,947
406,422
Markets across
30,383
events
MATCHED EVENTS:
2,688
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Sep 22, 3:16 AM EST
Kalshi
This market tracks the outcome of the first set in a professional tennis match between Tatiana Prozorova and Sofia Costoulas. The winner of the set determines the result, reflecting the competitive performance of each player in the early stages of their match.
If Tatiana Prozorova wins set 1 in the Tatiana Prozorova vs Sofia Costoulas professional tennis match in the 2026 WTA Singapore Round Of 32, then the market resolves to Yes. If Sofia Costoulas wins set 1 in the Tatiana Prozorova vs Sofia Costoulas professional tennis match in the 2026 WTA Singapore Round Of 32, then the market resolves to Yes.