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 11, 9:11 PM EST
Kalshi
This market focuses on determining which player will win the second set of a professional tennis match between Frances Tiafoe and Ben Shelton at the 2026 US Open Men Singles Semifinal. The outcome depends solely on the performance of the players during that specific set. If neither player wins the set—for example, if the match is canceled or ends prematurely—the market will resolve based on fair pricing principles.
The market resolves based on which player wins the second set of the specified tennis match. If the match does not occur before any play due to injury, walkover, forfeiture, or cancellation, it resolves to a fair price. Postponements or delays keep the market open until the rescheduled match concludes. If a player retires during the match, markets that can be settled based on completed play will resolve accordingly, while unresolved markets will settle at a fair market price determined by the Exchange. Kalshi disclaims any official affiliation with the governing league, and all trademarks remain property of their respective owners.