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: Sep 11, 8:35 PM EST
Kalshi
This market focuses on predicting which player will win the first set in an upcoming tennis semifinal match during the 2026 US Open. It allows participants to speculate on the immediate performance of the athletes in the early stages of a high-stakes match.
If Frances Tiafoe wins set 1 in the Frances Tiafoe vs Ben Shelton professional tennis match in the 2026 US Open Men Singles Semifinal, then the market resolves to Yes. If Ben Shelton wins set 1 in the Frances Tiafoe vs Ben Shelton professional tennis match in the 2026 US Open Men Singles Semifinal, then the market resolves to Yes.