Sao Paulo Open: Anna Blinkova vs Alina Charaeva

Kalshi — primary rule

If Anna Blinkova wins the Blinkova vs Charaeva professional tennis match in the 2026 WTA Sao Paulo Quarterfinal after a ball has been played, then the market resolves to Yes.

Polymarket — resolution criteria

This market refers to the tennis match between Anna Blinkova and Alina Charaeva in the Sao Paulo Open, originally scheduled for September 18, 2026 at 9:00AM ET. This market will resolve to 'Anna Blinkova' if Anna Blinkova advances against Alina Charaeva. This market will resolve to 'Alina Charaeva' if Alina Charaeva advances against Anna Blinkova. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 2, 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.