KalshiClosedCheck availabilityKYC required2% feeVerified resolution dataFairly calibratedThis market resolved: Erik Grevelius / Adam Heinonen (90%)
Resolved: Aug 21, 2026, 10:51 AM
Provider-verified resolution
CoinRithm has provider-backed winner and settlement-time evidence for this market.
Data quality warningStale data
Data as of Aug 21, 2026, 10:40 AM UTC · policy pm-quality-3
Current implied probability
Erik Grevelius / Adam Heinonen 90%
Market quality
14 / 100
Low quality24h Volume
$224.4
Liquidity
$224.4
Low liquidityBid / Ask
25.0% / 90.0%
Spread
65.0 pt
Wide spreadMarket data
Updated 10 hours ago
StaleAug 20, 26, 9:10 PMSep 4, 26, 9:00 AM
Trends
90%
74%
Rules
If the named outcome wins the Recek / Siniakov vs Grevelius / Heinonen professional tennis match in the 2026 ATP Challenger Prague Semifinal after a ball has been played, then the market resolves to Yes.
Settles via:ATP
- The following market refers to the Recek / Siniakov vs Grevelius / Heinonen professional tennis match in the 2026 ATP Challenger Prague 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.
