This market refers to the tennis match between Nicolas Zanellato and Mateo Barreiros Reyes in the M15 Maceio, Main Draw, originally scheduled for October 21, 2026 at 10:00AM ET. This market will resolve to 'Nicolas Zanellato' if Nicolas Zanellato advances against Mateo Barreiros Reyes. This market will resolve to 'Mateo Barreiros Reyes' if Mateo Barreiros Reyes advances against Nicolas Zanellato. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 4, 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.