Set 1 Winner: Medvedev vs Halys

This market refers to the tennis match between Daniil Medvedev and Quentin Halys in the Australian Open ATP, scheduled for January 21 2026. This market will resolve to “Medvedev” if Daniil Medvedev wins the first set. It will resolve to “Halys” if Quentin Halys wins the first set. If the match begins but is not completed, and the first set is concluded with a winner determined, this market will resolve based on that completed set. If the first set is not completed for any reason, this market will resolve 50-50. If the match is canceled (not played at all) or is delayed beyond 7 days from the scheduled date without play beginning, this market will resolve 50-50. Resolution will be based on official Grand Slam match statistics.