Singapore Open: Elise Mertens vs Barbora Krejcikova Match O/U 21.5

Event Rules

This market refers to the tennis match between Elise Mertens and Barbora Krejcikova in the Singapore Open, originally scheduled for September 23, 2026 at 2:00AM ET. This market will resolve to 'Elise Mertens' if Elise Mertens advances against Barbora Krejcikova. This market will resolve to 'Barbora Krejcikova' if Barbora Krejcikova advances against Elise Mertens. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 7, 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 WTA Tour. A consensus of credible reporting may also be used.