This market refers to the tennis match between Alexander Zverev and Botic van de Zandschulp in the US Open ATP, originally scheduled for September 9, 2026 at 11:30AM ET. If the match is played to completion, this market will resolve to "Over" if the total number of sets played equals or exceeds 4, and to "Under" otherwise. A set counts as played once it has begun, even if it is not played to completion. A super tie breaker is considered as one (1) set. If the match is postponed or suspended, this market will remain open until the match has been completed. A postponement alone will not trigger...