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: Sep 4, 11:56 AM EST
Kalshi
Two professional tennis players will face off in a competitive match where the winner of the first set claims victory. The encounter will test their endurance and tactical skills, with each player striving to secure an early lead in the match.
If Marta Kostyuk wins set 1 in the Marta Kostyuk vs Ekaterina Alexandrova professional tennis match in the 2026 US Open Women Singles Round Of 32, then the market resolves to Yes. If Ekaterina Alexandrova wins set 1 in the Marta Kostyuk vs Ekaterina Alexandrova professional tennis match in the 2026 US Open Women Singles Round Of 32, then the market resolves to Yes.