Wuhan Tennis Open: Maria Sakkari vs Marta Kostyuk

Kalshi — primary rule

If Maria Sakkari wins the Sakkari vs Kostyuk professional tennis match in the 2026 WTA Wuhan Round Of 32 after a ball has been played, then the market resolves to Yes.

Polymarket — resolution criteria

This market refers to the tennis match between Maria Sakkari and Marta Kostyuk in the Wuhan Tennis Open, originally scheduled for October 13, 2026 at 2:00AM ET. This market will resolve to 'Maria Sakkari' if Maria Sakkari advances against Marta Kostyuk. This market will resolve to 'Marta Kostyuk' if Marta Kostyuk advances against Maria Sakkari. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 27, 2026, 11:59 PM ET (14 days after the scheduled start), 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.