W50 Berkeley, CA: Kayla Day vs Ella McDonald Set 1 O/U 10.5

Event Rules

This market refers to the tennis match between Kayla Day and Ella McDonald in the W50 Berkeley, CA, Main Draw, originally scheduled for September 26, 2026 at 2:00PM ET. This market will resolve to 'Kayla Day' if Kayla Day advances against Ella McDonald. This market will resolve to 'Ella McDonald' if Ella McDonald advances against Kayla Day. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 10, 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 International Tennis Federation (ITF). A consensus of credible reporting may also be used.