This market refers to the pickleball match between Cailyn Campbell and Daria Walczak in Veolia Arizona Open, scheduled for September 15 at 10:00AM ET. This market will resolve to 'Campbell' if Cailyn Campbell wins against Daria Walczak. This market will resolve to 'Walczak' if Daria Walczak wins against Cailyn Campbell. 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 side advances due to the opponent's retirement, default, or disqualification, this market will resolve to the side that advances. If the match ends in a walkover (a side withdraws before the start and the other advances automatically), this market will resolve to 50-50. The primary resolution source for this market is the official results published by the Professional Pickleball Association (https://ppatour.com/).