KalshiClosedCheck availabilityKYC required2% feeVerified resolution dataFairly calibratedThis market resolved: Michael Geerts / Matteo Martineau (99%)
Resolved: Aug 21, 2026, 3:06 PM
Provider-verified resolution
CoinRithm has provider-backed winner and settlement-time evidence for this market.
Winning Outcome
Michael Geerts / Matteo Martineau
At 7 days out
—
At 24 hours out
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Data quality warningStale data
Data as of Aug 21, 2026, 3:00 PM UTC · policy pm-quality-3
Current implied probability
Michael Geerts / Matteo Martineau 99%
Market quality
49 / 100
Low quality24h Volume
$4.6K
Liquidity
$4.3K
Medium liquidityBid / Ask
99.0% / 100.0%
Spread
1.0 pt
Tight spreadMarket data
Updated 5 hours ago
StaleAug 20, 26, 2:00 AMSep 3, 26, 1:50 PM
Probability Timeline
Michael Geerts / Matteo Martineau99%
John Echeverria / Anton Matusevich1%
99%
1%
Rules
If the named outcome wins the Geerts / Martineau vs Echeverria / Matusevich professional tennis match in the 2026 ATP Challenger Roehampton Quarterfinal after a ball has been played, then the market resolves to Yes.
Settles via:ATP
- The following market refers to the Geerts / Martineau vs Echeverria / Matusevich professional tennis match in the 2026 ATP Challenger Roehampton Quarterfinal 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).
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