ITF Portoroz: Tatiana Pieri vs Mia Ristic

This market refers to the tennis match between Tatiana Pieri and Mia Ristic in the ITF Women Portoroz, originally scheduled for May 20, 2026 at 4:00AM ET. This market will resolve to 'Tatiana Pieri' if Tatiana Pieri advances against Mia Ristic. This market will resolve to 'Mia Ristic' if Mia Ristic advances against Tatiana Pieri. 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.