Mubadala Citi DC Open: Kei Nishikori vs Juncheng Shang Match O/U 21.5

Event Rules

This market refers to the tennis match between Kei Nishikori and Juncheng Shang in the Mubadala Citi DC Open, originally scheduled for July 27, 2026 at 10:00AM ET. This market will resolve to 'Kei Nishikori' if Kei Nishikori advances against Juncheng Shang. This market will resolve to 'Juncheng Shang' if Juncheng Shang advances against Kei Nishikori. 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.