Live prediction market odds for Madison Keys vs. Petra Marcinko. Compare prices across Kalshi and Polymarket.
Kalshi / Polymarket
2026-06-26
Madison Keys vs. Petra Marcinko — WTA Tennis match scheduled for 2026-06-26. Compare live prediction market odds from Kalshi, Polymarket, and more on Prediction Hunt.
Madison Keys leads the “Madison Keys vs. Petra Marcinko” event at 84.5% implied probability, followed by Petra Marcinko at 16.5%. Platforms are tightly aligned at a 1.0% spread.
Madison Keys vs. Petra Marcinko is a prediction market event currently tracked across 2 platforms (Kalshi, Polymarket). Madison Keys leads at 85% implied probability, making it the market favorite. Other contenders include Petra Marcinko at 17%.
Madison Keys currently leads at 85% implied probability. Behind Madison Keys, Petra Marcinko at 17% are the next closest contenders. Platforms were tightly aligned at a 1.0% spread, suggesting broad consensus on the odds.
Here are the latest odds across Kalshi, Polymarket: Madison Keys: 85¢ on Kalshi, 84¢ on Polymarket. Petra Marcinko: 17¢ on Kalshi, 16¢ on Polymarket. Platforms are tightly aligned at a 1.0% spread, leaving little room for cross-platform arbitrage.
A price of 85¢ means the market estimates a 85% probability that Madison Keys will be the outcome. Buying one share at 85¢ pays out $1.00 if correct — a 18% return — or $0 if wrong. This is the core mechanic of prediction markets: the price directly reflects the crowd's probability estimate.
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Madison Keys
84.5% avg
Official settlement criteria, resolution sources, and edge cases across Kalshi and Polymarket.
KalshiIf Madison Keys wins the Marcinko vs Keys professional tennis match in the 2026 WTA Eastbourne Semifinal after a ball has been played, then the market resolves to Yes.
The following market refers to the Marcinko vs Keys professional tennis match in the 2026 WTA Eastbourne 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 to the tennis match between Petra Marcinko and Madison Keys in the Lexus Eastbourne Open, originally scheduled for June 26, 2026 at 7:30AM ET. This market will resolve to 'Petra Marcinko' if Petra Marcinko advances against Madison Keys. This market will resolve to 'Madison Keys' if Madison Keys advances against Petra Marcinko. 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.
