KalshiClosedCheck availabilityKYC requiredVerified resolution dataWell calibratedThis market resolved: Katerina Siniakova (80%)
Resolved: Oct 24, 2026, 9:22 AM
Provider-verified resolution
CoinRithm has provider-backed winner and settlement-time evidence for this market.
Data quality warningStale data
Data as of Oct 24, 2026, 8:55 AM UTC · policy pm-quality-4
Probability Timeline
Katie Boulter19%
Katerina Siniakova80%
Katerina SiniakovaWon
Katie BoulterLost
Rules
If Katerina Siniakova wins the Boulter vs Siniakova professional tennis match in the 2026 WTA Osaka Semifinal after a ball has been played, then the market resolves to Yes.
Settles via:WTA
- The following market refers to the Boulter vs Siniakova professional tennis match in the 2026 WTA Osaka Semifinal 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.
Rules for each outcome
- Katerina Siniakova
- If Katerina Siniakova wins the Boulter vs Siniakova professional tennis match in the 2026 WTA Osaka Semifinal after a ball has been played, then the market resolves to Yes.
- Katie Boulter
- If Katie Boulter wins the Boulter vs Siniakova professional tennis match in the 2026 WTA Osaka Semifinal after a ball has been played, then the market resolves to Yes.
