The first professional victory of Sophia Popov's career came at a major championship on Sunday when the 304th-ranked German won the Women's British Open at Royal Troon.
Popov recovered from a bogey on the first hole by making five birdies for a 3-under 68 in the final round, leaving her 7 under par overall and two strokes clear of Jasmine Suwannapura of Thailand (67).
Kiwi Lydia Ko in a share of 14th after a final round two-over 73 saw her slip out of contention on the final day.
Wiping tears from her eyes, Popov tapped in a bogey putt at the last to complete one of the most unlikely wins in the tournament's history.
She lost her card on the LPGA Tour at the end of last year and only qualified for the British Open via a top-10 finish two weeks ago at the Marathon Classic, which she was playing only because higher-ranked players couldn't attend due to COVID-19 restrictions.