Japan Open Tennis Championships, Qualification: Arthur Fils vs Kamil Majchrzak Match O/U 21.5

Event Rules

This market refers to the tennis match between Arthur Fils and Kamil Majchrzak in the Japan Open Tennis Championships, Qualification, originally scheduled for September 28, 2026 at 11:30PM ET. This market will resolve to 'Arthur Fils' if Arthur Fils advances against Kamil Majchrzak. This market will resolve to 'Kamil Majchrzak' if Kamil Majchrzak advances against Arthur Fils. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 12, 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.