This market refers to the tennis match between Sergio Callejon Hernando and Izan Almazan Valiente in the ITF Men Tauste, originally scheduled for August 6, 2026 at 3:00PM ET. This market will resolve to 'Sergio Callejon Hernando' if Sergio Callejon Hernando advances against Izan Almazan Valiente. This market will resolve to 'Izan Almazan Valiente' if Izan Almazan Valiente advances against Sergio Callejon Hernando. 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 International Tennis Federation (ITF). A consensus of credible reporting may also be used.