KalshiClosedCheck availabilityKYC required2% feeVerified resolution dataFairly calibratedThis market resolved: Marta Kostyuk (83%)
Resolved: Aug 16, 2026, 9:42 PM
Provider-verified resolution
CoinRithm has provider-backed winner and settlement-time evidence for this market.
Winning Outcome
Marta Kostyuk
At 7 days out
—
At 24 hours out
89%
ConsensusCurrent implied probabilityMarta Kostyuk 82.2%-7.0pt
Market quality
49 / 100
Low quality24h Volume
$3.7M
Liquidity
$2.2M
High liquidityBid / Ask
17.0% / 18.0%
Spread
1.0 pt
Tight spreadMarket data
Updated 4 hours ago
StaleAug 15, 26, 3:06 PMAug 30, 26, 3:00 PM
Probability Timeline
Sofia Kenin18%
Marta Kostyuk83%
17.8%
82.2%
Rules
If Marta Kostyuk wins the Kostyuk vs Kenin professional tennis match in the 2026 WTA Cincinnati Round Of 64 after a ball has been played, then the market resolves to Yes.
- The following market refers to the Kostyuk vs Kenin professional tennis match in the 2026 WTA Cincinnati Round Of 64 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.