he U.S. Women's Open is solely conducted by the USGA. This event began in 1946 and is the longest-running tournament currently on the LPGA Tour. It is one of the LPGA's five major championships. In 2025, when the final scores were tallied on Sunday afternoon at the U.S. Women's Open presented by Ally, it was ultimately Sweden's Maja Stark who hoisted the Harton S. Semple trophy, becoming the first European to win this major championship since Annika Sorenstam in 2006.