This market refers to the tennis match between Andrea Guerrieri and Chun-Hsin Tseng in the Francavilla, originally scheduled for May 5, 2026 at 2:00PM ET. This market will resolve to 'Andrea Guerrieri' if Andrea Guerrieri advances against Chun-Hsin Tseng. This market will resolve to 'Chun-Hsin Tseng' if Chun-Hsin Tseng advances against Andrea Guerrieri. 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.