This market refers to the tennis match between Dan Martin and Alex Rybakov in the Tiburon, USA, Qualifying, originally scheduled for September 13, 2026 at 4:30PM ET. This market will resolve to 'Dan Martin' if Dan Martin advances against Alex Rybakov. This market will resolve to 'Alex Rybakov' if Alex Rybakov advances against Dan Martin. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 27, 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.