This market refers to the tennis match between Matthew Dellavedova and Grigoriy Lomakin in the Phan Thiet 4, originally scheduled for September 14, 2026 at 11:00PM ET. This market will resolve to 'Matthew Dellavedova' if Matthew Dellavedova advances against Grigoriy Lomakin. This market will resolve to 'Grigoriy Lomakin' if Grigoriy Lomakin advances against Matthew Dellavedova. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 28, 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.