Estoril Open: Stan Wawrinka vs Roman Andres Burruchaga Match O/U 21.5

Event Rules

This market refers to the tennis match between Stan Wawrinka and Roman Andres Burruchaga in the Estoril Open, originally scheduled for July 20, 2026 at 6:00AM ET. This market will resolve to 'Stan Wawrinka' if Stan Wawrinka advances against Roman Andres Burruchaga. This market will resolve to 'Roman Andres Burruchaga' if Roman Andres Burruchaga advances against Stan Wawrinka. 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.