Curitiba: Gustavo Heide vs Guido Justo Match O/U 21.5

Event Rules

This market refers to the tennis match between Gustavo Heide and Guido Justo in the Curitiba, originally scheduled for October 4, 2026 at 11:00AM ET. This market will resolve to 'Gustavo Heide' if Gustavo Heide advances against Guido Justo. This market will resolve to 'Guido Justo' if Guido Justo advances against Gustavo Heide. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 18, 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.