This market refers to the tennis match between Mario Martinez Serrano and Cedric Stanke in the M25 Zaragoza, Qualifying, originally scheduled for September 28, 2026 at 12:00PM ET. This market will resolve to 'Mario Martinez Serrano' if Mario Martinez Serrano advances against Cedric Stanke. This market will resolve to 'Cedric Stanke' if Cedric Stanke advances against Mario Martinez Serrano. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 12, 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 International Tennis Federation (ITF). A consensus of credible reporting may also be used.