This market refers to the tennis match between Joaquin Aguilar and Nicolas Villalon in the Antofagasta, originally scheduled for October 6, 2026 at 5:00PM ET. This market will resolve to 'Joaquin Aguilar' if Joaquin Aguilar advances against Nicolas Villalon. This market will resolve to 'Nicolas Villalon' if Nicolas Villalon advances against Joaquin Aguilar. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 20, 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 ATP Tour. A consensus of credible reporting may also be used.