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Prediction market on polymarket. This market refers to the tennis match between Stefanos Tsitsipas and Valentin Vacherot in the Japan Open Tennis Championships, originally scheduled for October 1, 2026 at 11:30PM ET. This market will resolve to "Stefanos Tsitsipas" if Stefanos Tsitsipas wins by 2 or more sets than Valentin Vacherot, based on the final completed score. Otherwise, it will resolve to "Valentin Vacherot." If the match begins but is not completed due to retirement, default, or disqualification, this market will resolve 50-50, unless the outcome of this market has already been unconditionally determined by the completed portion of play under the match format published by the tournament organizer for that round. For example, if the deciding set has begun when the match ends, Stefanos Tsitsipas can no longer win by 2 or more sets, and this market will resolve to "Valentin Vacherot." If the match is canceled before play begins, or a result has not been determined 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 results.
Resolves: 10/9/2026.