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Prediction market on polymarket. This market refers to the tennis match between Rion Itaya and Sayaka Ishii in the W50 Nanao, originally scheduled for September 24, 2026 at 10:00PM ET. This market will resolve to "Rion Itaya" if Rion Itaya wins by 2 or more sets than Sayaka Ishii, based on the final completed score. Otherwise, it will resolve to "Sayaka Ishii." 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, Rion Itaya can no longer win by 2 or more sets, and this market will resolve to "Sayaka Ishii." If the match is canceled before play begins, or a result has not been determined 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 results.
Resolves: 10/2/2026.