Live prediction market odds for Yuliia Starodubtseva vs. Madison Keys. Compare prices across Kalshi and Polymarket.
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MARKET RESOLVEDKalshi / Polymarket
Resolved 2026-04-04
This market resolved on 2026-04-04. Yuliia Starodubtseva was the officially declared outcome. Prior to resolution, the market peaked at 59%.
Yuliia Starodubtseva vs. Madison Keys — WTA Tennis match held on 2026-04-04. Review the historical prediction market odds from Kalshi, Polymarket, and more on Prediction Hunt.
| Candidate |  |  |
|---|---|---|
Yuliia StarodubtsevaWINNER | 99% | 20% |
Madison Keys | 1% | 81% |
Yuliia Starodubtseva vs. Madison Keys was a prediction market event tracked across 2 platforms (Kalshi, Polymarket). Yuliia Starodubtseva led the market at 59% implied probability before resolution. Other contenders include Madison Keys at 41%.
Yuliia Starodubtseva held the lead at 59% implied probability heading into resolution. Behind Yuliia Starodubtseva, Madison Keys at 41% were the next closest contenders. The 79.5% cross-platform spread suggested platforms were pricing new information differently, creating potential trading opportunities.
Here were the closing odds across Kalshi, Polymarket: Yuliia Starodubtseva: 99¢ on Kalshi, 20¢ on Polymarket. Madison Keys: 1¢ on Kalshi, 81¢ on Polymarket. The 79.5% 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 59¢ meant the market estimated a 59% chance that Yuliia Starodubtseva would be the outcome. Traders who bought at 59¢ and held through resolution received $1.00 per share — a 69% return on their position. Those on the wrong side received $0.
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Official settlement criteria, resolution sources, and edge cases across Kalshi and Polymarket.
KalshiIf Yuliia Starodubtseva wins the Keys vs Starodubtseva professional tennis match in the 2026 WTA Charleston Semifinal after a ball has been played, then the market resolves to Yes.
The following market refers to the Keys vs Starodubtseva professional tennis match in the 2026 WTA Charleston 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).
PolymarketThis market refers on the tennis match between Madison Keys and Yulia Starodubtseva in the Credit One Charleston Open, scheduled for April 4 at 2:30PM ET. This market will resolve to 'Madison Keys' if Madison Keys advances against Yulia Starodubtseva. This market will resolve to 'Yulia Starodubtseva' if Yulia Starodubtseva advances against Madison Keys. If the match is canceled (not played at all), ends in a tie, or is delayed beyond 7 days from the scheduled date without a winner determined, this market will resolve to 50-50. If the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances. If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50. The primary resolution source will be official information from the WTA Tour. A consensus of credible reporting may also be used.
Yuliia Starodubtseva
59.3% avg
