Zdenek Kolar vs. Zhizhen Zhang: Total Sets O/U 2.5

This market refers to the tennis match between Zdenek Kolar and Zhizhen Zhang in the Oeiras 4, originally scheduled for May 12, 2026 at 10:30AM ET. This market will resolve to "Over" if the total number of sets completed equals or exceeds 3. Otherwise, it will resolve to "Under." A super tie breaker is considered as one (1) set for total set markets. If the match begins but is not completed, this market will resolve 50-50. If the match is canceled before play begins or delayed beyond 7 days from the scheduled date without a result, this market will also resolve 50-50. Resolution will be based on official Challenger statistics.