KalshiClosedCheck availabilityKYC required2% feeVerified resolution dataFairly calibratedThis market resolved: Katie Boulter (99%)
Resolved: Aug 30, 2026, 11:53 PM
Provider-verified resolution
CoinRithm has provider-backed winner and settlement-time evidence for this market.
Data quality warningStale data
Data as of Aug 30, 2026, 11:50 PM UTC · policy pm-quality-3
Current implied probability
Katie Boulter 99%+41.0pt
Market quality
≤49 / 100
Low quality24h Volume
$2.7M
Liquidity
$1.6M
High liquidityBid / Ask
99.0% / 100.0%
Spread
1.0 pt
Tight spreadMarket data
Updated 3 hours ago
StaleAug 27, 26, 5:36 PMSep 13, 26, 3:00 PM
Probability Timeline
Carol Young Suh Lee1%
Katie Boulter99%
99%
1%
Rules
If the named outcome wins the Lee vs Boulter professional tennis match in the 2026 US Open Women Singles Round Of 128 after a ball has been played, then the market resolves to Yes.
Settles via:WTA
- The following market refers to the Lee vs Boulter professional tennis match in the 2026 US Open Women Singles Round Of 128 after a ball has been played.
- 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).
- Kalshi is not affiliated, associated, authorized, endorsed by, or in any way officially connected with the Governing League.
- All trademarks, logos, and brand names are the property of their respective owners.
Open markets
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KALSHIMunar vs Atmane
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POLYMARKETUS Open ATP: Jaume Munar vs Terence Atmane
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- Atmane Total Sets: O/U 3.5+36.0pt100%
- Atmane Match O/U 36.5+42.0pt100%
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- Los Angeles A-15.0pt21.8%
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Frequently asked questions
- What are the current odds for Lee vs Boulter?
- Kalshi prices Katie Boulter at 99% as of August 30, 2026.
- When does Lee vs Boulter resolve?
- Lee vs Boulter is scheduled to resolve on September 13, 2026.
- How is Lee vs Boulter settled?
- Kalshi settles this market as follows: If the named outcome wins the Lee vs Boulter professional tennis match in the 2026 US Open Women Singles Round Of 128 after a ball has been played, then the market resolves to Yes.