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Prediction market on polymarket. This market refers to the tennis match between King/Nakashima and Arribage/Olivetti in the Japan Open Tennis Championships, originally scheduled for September 30, 2026 at 9:00PM ET. This market will resolve to "King/Nakashima" if King/Nakashima wins by 2 or more sets than Arribage/Olivetti, based on the final completed score. Otherwise, it will resolve to "Arribage/Olivetti." 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, King/Nakashima can no longer win by 2 or more sets, and this market will resolve to "Arribage/Olivetti." If the match is canceled before play begins, or a result has not been determined by October 14, 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: 10/8/2026.