This market refers to the tennis match between Koki Matsuda and Hayato Matsuoka in the Astana, originally scheduled for August 10, 2026 at 1:00AM ET. This market will resolve to 'Koki Matsuda' if Koki Matsuda advances against Hayato Matsuoka. This market will resolve to 'Hayato Matsuoka' if Hayato Matsuoka advances against Koki Matsuda. If the match is canceled (not played at all), ends in a tie, or is delayed beyond 7 days from the scheduled date without a winner determined, this market will resolve to 50-50. If the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances. If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50. The primary resolution source will be official information from the ATP Tour. A consensus of credible reporting may also be used.