This market refers to the tennis match between Karolina Muchova and Naomi Osaka in the China Open, originally scheduled for October 5, 2026 at 11:00PM ET. This market will resolve to 'Karolina Muchova' if Karolina Muchova advances against Naomi Osaka. This market will resolve to 'Naomi Osaka' if Naomi Osaka advances against Karolina Muchova. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 19, 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.