Live prediction market odds for Anhelina Kalinina vs. Sloane Stephens. Compare prices across Kalshi and Polymarket.
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MARKET RESOLVEDKalshi / Polymarket
Resolved 2026-04-21
This market resolved on 2026-04-21. Sloane Stephens was the officially declared outcome. Prior to resolution, the market peaked at 50%.
Anhelina Kalinina vs. Sloane Stephens — WTA Tennis match held on 2026-04-21. Review the historical prediction market odds from Kalshi, Polymarket, and more on Prediction Hunt.
| Candidate |  |  |
|---|---|---|
Sloane StephensWINNER | 1% | 100% |
Anhelina Kalinina | 99% | 0% |
Anhelina Kalinina vs. Sloane Stephens was a prediction market event tracked across 2 platforms (Kalshi, Polymarket). Sloane Stephens led the market at 50% implied probability before resolution. Other contenders include Anhelina Kalinina at 50%.
Sloane Stephens held the lead at 50% implied probability heading into resolution. Behind Sloane Stephens, Anhelina Kalinina at 50% were the next closest contenders. The 98.9% cross-platform spread suggested platforms were pricing new information differently, creating potential trading opportunities.
Here were the closing odds across Kalshi, Polymarket: Sloane Stephens: 1¢ on Kalshi, 100¢ on Polymarket. Anhelina Kalinina: 99¢ on Kalshi, 0¢ on Polymarket. The 98.9% spread across platforms highlights where markets disagreed — a gap traders can exploit by buying low on one platform and selling high on another.
A price of 50¢ meant the market estimated a 50% chance that Sloane Stephens would be the outcome. Traders who bought at 50¢ and held through resolution received $1.00 per share — a 100% return on their position. Those on the wrong side received $0.
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Sloane Stephens
50.5% avg
Official settlement criteria, resolution sources, and edge cases across Kalshi and Polymarket.
KalshiIf Anhelina Kalinina wins the Stephens vs Kalinina professional tennis match in the 2026 WTA Madrid Qualification Round 2 after a ball has been played, then the market resolves to Yes.
The following market refers to the Stephens vs Kalinina professional tennis match in the 2026 WTA Madrid Qualification Round 2 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).
PolymarketThis market refers to the tennis match between Sloane Stephens and Anhelina Kalinina in the Madrid Open, Qualification, originally scheduled for April 21, 2026 at 8:00AM ET. This market will resolve to “Stephens” if Sloane Stephens wins the first set. It will resolve to “Kalinina” if Anhelina Kalinina wins the first set. If the match begins but is not completed, and the first set is concluded with a winner determined, this market will resolve based on that completed set. If the first set is not completed for any reason, this market will resolve 50-50. If the match is canceled (not played at all) or is delayed beyond 7 days from the scheduled date without play beginning, this market will resolve 50-50. Resolution will be based on official WTA match statistics.
