Current implied probability
Frances Tiafoe 100%+42.5ptLeader of 44 outcomes
Market quality
66 / 100
Medium quality24h Volume
$3K
Liquidity
$7.6K
Medium liquiditySpread
0.1 pt
Tight spreadComments
0
7d Change
+52.5 pts
Market data
Updated 5 minutes ago
Aug 25, 26, 3:26 PM UTCSep 10, 26, 11:59 PM UTC
Trends
100%
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Related Markets
Related questions for context, not a comparison of equivalent contracts.
US Open 2026: To Reach Semifinals (Women's Singles)
PolymarketUS Open Men's Singles: Americans to Reach Semifinals
KalshiUS Open Women's Singles: Americans to Reach Semifinals
KalshiWhich women's tennis players will reach the 2026 U.S. Open Semifinals?
Manifold MarketsWhich men's tennis players will reach the 2026 U.S. Open Semifinals?
Manifold MarketsUS Open Men's Singles Winner
KalshiRules
This market will resolve to "Yes" if the listed player clinches a spot in the Semifinals at the 2026 US Open per US Open rules.
- Otherwise, the associated market will resolve to "No".
- If at any point it becomes impossible for the listed player to clinch a spot in the Semifinals at the 2026 US Open (e.g. the player is eliminated), the associated market will resolve to "No".
- If the 2026 US Open is cancelled, postponed after September 27, 11:59 PM ET, or the players that qualified for the Semifinals have not been officially confirmed by the USTA within that timeframe, this market will resolve to "No".
- The resolution source for this market will be official information from the USTA and ATP; however, a consensus of credible reporting may also be used.