Biella: Maximilian Marterer vs Federico Arnaboldi

This market refers to the tennis match between Maximilian Marterer and Federico Arnaboldi in the Biella, Italy, Qualifying, originally scheduled for September 13, 2026 at 6:20AM ET. This market will resolve to 'Maximilian Marterer' if Maximilian Marterer advances against Federico Arnaboldi. This market will resolve to 'Federico Arnaboldi' if Federico Arnaboldi advances against Maximilian Marterer. 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.