KalshiClosedCheck availabilityKYC requiredVerified resolution dataWell calibratedThis market resolved: Alexander Donski / Filip Pieczonka (97%)
Resolved: Sep 30, 2026, 6:37 PM
Provider-verified resolution
CoinRithm has provider-backed winner and settlement-time evidence for this market.
Winning Outcome
Alexander Donski / Filip Pieczonka
At 7 days out
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At 24 hours out
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Probability Timeline
Michael Geerts / Vijay Sundar Prashanth12%
Alexander Donski / Filip Pieczonka97%
Alexander Donski / Filip PieczonkaWon
Michael Geerts / Vijay Sundar PrashanthLost
Related Markets
Related questions for context, not a comparison of equivalent contracts.
Rules
If Alexander Donski / Filip Pieczonka wins the Geerts / Prashanth V vs Donski / Pieczonka professional tennis match in the 2026 ATP Challenger Porto 2 Round Of 16 after a ball has been played, then the market resolves to Yes.
Settles via:ATP
- The following market refers to the Geerts / Prashanth V vs Donski / Pieczonka professional tennis match in the 2026 ATP Challenger Porto 2 Round Of 16 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
- Alexander Donski / Filip Pieczonka
- If Alexander Donski / Filip Pieczonka wins the Geerts / Prashanth V vs Donski / Pieczonka professional tennis match in the 2026 ATP Challenger Porto 2 Round Of 16 after a ball has been played, then the market resolves to Yes.
- Michael Geerts / Vijay Sundar Prashanth
- If Michael Geerts / Vijay Sundar Prashanth wins the Geerts / Prashanth V vs Donski / Pieczonka professional tennis match in the 2026 ATP Challenger Porto 2 Round Of 16 after a ball has been played, then the market resolves to Yes.
