Set 1 Winner: Valentin Vacherot vs Stefanos Tsitsipas

This market refers to the tennis match between Valentin Vacherot and Stefanos Tsitsipas in the Japan Open Tennis Championships, originally scheduled for October 1, 2026 at 11:30PM ET. This market will resolve to “Valentin Vacherot” if Valentin Vacherot wins the first set. It will resolve to “Stefanos Tsitsipas” if Stefanos Tsitsipas 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 play has not begun by October 15, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve 50-50. Resolution will be based on official ATP match statistics. This market may resolve only when the listed period of play has concluded and the result can be definitively determined by the listed resolution source(s).