KalshiCheck availabilityKYC required2% feeVerified resolution dataFairly calibratedCurrent implied probability
Ben Shelton 63.7%Vig-adjusted: raw venue quotes summed above 100% and were normalized.
Market quality
61 / 100
Medium quality24h Volume
$1.8K
Liquidity
$1.8K
Low liquidityBid / Ask
62.0% / 65.0%
Spread
3.0 pt
Moderate spreadMarket data
Updated 2 minutes ago
Sep 9, 26, 8:10 AM UTCSep 25, 26, 7:00 PM UTC
Trends
Related Markets
Related questions for context, not a comparison of equivalent contracts.
Frances Tiafoe vs Ben Shelton: Set 2 Winner
KalshiAlexander Zverev vs Karen Khachanov: Set 1 Winner
KalshiFrances Tiafoe vs Ben Shelton: Set 3 Winner
KalshiUS Open ATP: Frances Tiafoe vs Ben Shelton
PolymarketFrances Tiafoe vs Ben Shelton
GeminiFrances Tiafoe vs Ben Shelton: 4 or more total sets?
LimitlessRules
If the named outcome wins set 1 in the the named outcome vs the named outcome professional tennis match in the 2026 US Open Men Singles Semifinal, then the market resolves to Yes.
Settles via:ATP
- The following market refers to the the named outcome vs the named outcome professional tennis match in the 2026 US Open Men Singles Semifinal.
- If the match does not occur (signaled by a ball being played) due to a player injury, walkover, forfeiture, or any other cancellation (all before the match starts), the market will resolve to a fair price in accordance with the rules.
- If this match is postponed or delayed, the market will remain open and close after the rescheduled match has finished (within two weeks).
- If a retirement occurs, all markets that can be unconditionally settled based on play already completed will resolve accordingly.
- Any markets that cannot be unconditionally settled will resolve to Fair Market Price, as determined at the sole discretion of the Exchange.
Open markets
SportsKALSHI2027 Pro Football Champion
- Los Angeles R13.9%
- Buffalo6.6%
- Seattle-1.0pt5.7%
+29 more outcomes
- Total Vol
- $90M
- 24h Vol
- $3.9M
KALSHIInoue vs Adkar
- Hina Inoue99%
- Vaishnavi Adkar1%
- Total Vol
- $2.1M
- 24h Vol
- $2.1M
KALSHIAmgen Irish Open Winner
- Rory McIlroy+1.0pt14%
- Jon Rahm-0.2pt8%
- Tyrrell Hatton-0.5pt5%
+97 more outcomes
- Total Vol
KALSHISekulic vs Matsuda
- Philip Sekulic93.1%
- Koki Matsuda6.9%
- Total Vol
- $2M
- 24h Vol
- $1.9M
POLYMARKETUEFA Champions League: 2027 Champion
- Barcelona17.9%
- Bayern Munich+1.0pt15.1%
- Arsenal-1.0pt13.2%
+33 more outcomes
POLYMARKETCounter-Strike: Alliance vs TYLOO (BO3) - FISSURE PLAYGROUND Group B
- 1 Winner100%
- 2 Winner100%
- Match Winner100%
+21 more outcomes
- Total Vol
- $1.2M
- 2026 Men’s US Open Winner (Tennis)
- Counter-Strike: 9z vs G2 (BO3) - FISSURE PLAYGROUND Group A
- San Francisco vs Los Angeles R
- MVP Winner?
- Nflgame 26 SEP 09 Nesea
- MLB: Minnesota Twins vs Detroit Tigers (Sep 9, 2026)
- Ogura vs Hong
- Amgen Irish Open End of Round 1 Leader
- San Francisco vs Los Angeles: Spread
- NFL 2026-27: Champion
- Ballon d'Or Winner 2026
- Pro Baseball Champion
Frequently asked questions
- What are the current odds for Frances Tiafoe vs Ben Shelton: Set 1 Winner?
- Kalshi prices Ben Shelton at 64% as of September 10, 2026.
- When does Frances Tiafoe vs Ben Shelton: Set 1 Winner resolve?
- Frances Tiafoe vs Ben Shelton: Set 1 Winner is scheduled to resolve on September 25, 2026.
- How is Frances Tiafoe vs Ben Shelton: Set 1 Winner settled?
- Kalshi settles this market as follows: If the named outcome wins set 1 in the the named outcome vs the named outcome professional tennis match in the 2026 US Open Men Singles Semifinal, then the market resolves to Yes.