This market refers on the tennis match between Varvara Gracheva and Maria Sakkari in the Qatar Total Open, scheduled for February 11 at 2:00AM ET. This market will resolve to 'Gracheva' if Varvara Gracheva advances against Maria Sakkari. This market will resolve to 'Sakkari' if Maria Sakkari advances against Varvara Gracheva. 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 WTA Tour. A consensus of credible reporting may also be used.