U.S. Senior Women's Open: The Last Time It HappenedSeptember 15, 2021

Last international winner: Annika Sorenstam, 2021

Last to defend title: n/a

Last to win Senior Open on first attempt: Annika Sorenstam, 2021

Last to win Senior Open on second attempt: Helen Alfredsson, 2019

Last start-to-finish winner (with ties): Annika Sorenstam, 2021

Last winner to birdie the 72nd hole: Laura Davies, 2018

Last winner with four sub-par rounds: Laura Davies, 2018

Last to win without a round in the 60s: n/a

Last to win with all rounds in the 60s: n/a

Last to win with a round of 74: n/a

Last to win with a round of 75: Helen Alfredsson, 2019

Last to win after advancing from final qualifying: n/a

Last defending champion to miss the cut: n/a

Last winner between ages 50-55: Annika Sorenstam, 50, 2021

Last winner over age 60: n/a

Last winner who received a special exemption: n/a

Last defending champion to miss the cut: n/a