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Prediction market on polymarket. This market refers to the tennis match between Sayaka Ishii and Rion Itaya in the W50 Nanao, originally scheduled for September 24, 2026 at 10:00PM ET. This market will resolve to “Sayaka Ishii” if Sayaka Ishii wins the first set. It will resolve to “Rion Itaya” if Rion Itaya 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 8, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve 50-50. Resolution will be based on official ITF match statistics.
Resolves: 10/2/2026.