Yamashita Matches LPGA Scoring Record With Nine-Shot Romp in Edmonton

Miyu Yamashita won the CPKC Women's Open by nine shots on Sunday, closing with a four-under 66 that tied the LPGA Tour's all-time 72-hole scoring record. Her 23-under-par total of 257 matched the mark Kim Sei-young set at Thornberry Creek in 2018 — though Kim's record came at 31 under on a par-72 layout, while Yamashita posted hers on Royal Mayfair's par-70 course in Edmonton. (LPGA)

Yamashita, a 25-year-old from Japan, led from the opening round — what golf calls a wire-to-wire win, holding first place every day from Thursday through Sunday. She carried a six-shot lead into the final round after a third-round 65, and never let the field close the gap. A birdie putt from eight feet on the 18th green sealed the record and the margin. (LPGA, BBC Sport)

Nine shots is an enormous lead in professional golf, where winning margins of one or two strokes are the norm. To put it in perspective: the player who finished second, Yuri Yoshida, was 14 under par — nine strokes behind but still playing excellent golf. Yoshida's runner-up finish was the best result of her LPGA career. (LPGA)

Kim Sei-young, whose 2018 scoring record Yamashita equalled, mounted a Sunday charge to finish solo third at 13 under. The symmetry was striking — the record-holder chasing the player breaking her mark, only to fall further behind. (LPGA)

The win was Yamashita's fourth LPGA victory in 13 months, a run that included her first major title at the Women's Open and the 2025 LPGA Tour rookie of the year award. For a player still early in her tour career, the pace is remarkable. (BBC Sport)

Royal Mayfair, a tree-lined course in the heart of Edmonton, played longer and softer than usual after record summer rain turned the area into what local reports described as a mosquito hot spot. The conditions did not slow Yamashita, who broke the CPKC Women's Open tournament scoring record of 262 set by Ko Jin-young in 2019 — and did so by five strokes. (LPGA, BBC Sport)

What makes the week stand out is not just the margin or the record. It is the control. Yamashita led by six going into Sunday, the kind of advantage that can make a player cautious — and caution, in golf, is often where big leads start to shrink. She shot 66. The lead grew. The putt on 18 was for history, and she rolled it in.