Opelka vs. Fonseca: Set 1 Games O/U 8.5

This market refers to the tennis match between Reilly Opelka and Joao Fonseca in the Brisbane International, scheduled for January 4 2026. This market will resolve to "Over" if the total number of games completed in the first set equals or exceeds 9. Otherwise, it will resolve to "Under." Any first-set tiebreak counts as one (1) game toward the total. If the first set is not completed for any reason, this market will resolve 50-50. If the match is canceled before play begins, or delayed beyond 7 days without commencement, this market will also resolve 50-50. Resolution will be based on official ATP results.