Jutanugarn got into the field as the first alternate from the Galveston (Texas) Country Club qualifier. She won a 2-for-1 playoff for first-alternate status. She joined her youngster sister, Ariya, as an LPGA Tour winner when she claimed the 2018 Hugel-JTBC LA Open at Wilshire Country Club by two strokes over Inbee Park and Jin Young Ko. They were the second set of sisters to win on the LPGA Tour, joining Annika and Charlotta Sorenstam, and they have since been joined by Jessica and Nelly Korda. The Jutanugarn sisters also teamed up to win the 2021 Dow Great Lakes Bay Invitational, the only team event on the circuit. Moriya’s best finish in a major championship is a share of third in the 2017 Amundi Evian Championship. She also contended in the 2020 U.S. Women's Open at Champions Golf Club before finishing tied for sixth. As an amateur, Moriya was the runner-up to Danielle Kang in the 2011 U.S. Women’s Amateur at Rhode Island Country Club. This will be her 12th U.S. Women's Open start.