ITF Karuizawa: Hikaru Shiraishi vs Tomohiro Masabayashi

This market refers to the tennis match between Hikaru Shiraishi and Tomohiro Masabayashi in the ITF Men Karuizawa, originally scheduled for May 27, 2026 at 9:00PM ET. This market will resolve to 'Hikaru Shiraishi' if Hikaru Shiraishi advances against Tomohiro Masabayashi. This market will resolve to 'Tomohiro Masabayashi' if Tomohiro Masabayashi advances against Hikaru Shiraishi. 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 International Tennis Federation (ITF). A consensus of credible reporting may also be used.

• Resolver: official source.
• Deadline: closing date in UTC.
• Disputed outcomes: handled by moderators within 48 hours.