TOTAL VOLUME:
$134.2b
24H VOL:
$126,324,530
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,434,646,834
406,019
Markets across
30,401
events
MATCHED EVENTS:
2,689
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Sep 4, 5:30 PM EST
Kalshi
Another doubles encounter in the tournament's opening round determines the victorious pair. The outcome is decided once the match begins with a served ball.
If Alexander Blockx / Dino Prizmic wins the Blockx / Prizmic vs Gille / Verbeek professional tennis match in the 2026 US Open Men Doubles Round Of 64 after a ball has been played, then the market resolves to Yes. If Sander Gille / Sem Verbeek wins the Blockx / Prizmic vs Gille / Verbeek professional tennis match in the 2026 US Open Men Doubles Round Of 64 after a ball has been played, then the market resolves to Yes.