Yuka Saso wins U.S. Women's Open as Minjee Lee collapses on back 9

Yuka Saso became a U.S. Women's Open champion for the second time Sunday and took her place in history with a rare footnote — the first Filipino to win the Women's Open in 2021, and now the first from Japan to win women's golf' biggest event.

No matter the flag, the 22-year-old Saso delivered a masterful performance at Lancaster Country Club with a 2-under 68. She ran off four birdies in a five-hole stretch on the back nine amid a series of collapses and won without much drama.

Saso got up-and-down for par from short of the 18th green to finish at 4-under 276, winning by three shots over Hinako Shibuno, who in 2019 became the first Japanese player to capture the Women's British Open.

They were the only two players under par, the fewest for the Women's Open in 10 years. Saso's only other LPGA Tour victory was the Women's Open at Olympic Club in 2021. She also has two titles on the Japan LPGA.

Andrea Lee, part of a three-way tie for the lead at the start of this wild day, was the last player who had a chance to catch Saso. But the Stanford alum, a former No. 1 amateur, badly missed her tee shot on the easy 16th and had to settle for par, then took bogey on the 17th. Lee took one last bogey on the 18th for a 75 to tie for third with Ally Ewing (66).

WATCH: Saso wins her 2nd U.S. Women's Open:

Saso has said she wishes she could play for two flags — her mother is from the Philippines, her father from Japan. She decided to switch citizenship before turning 21, and Saso wound up leading a strong showing by Japan — five players among the top 10.

"Winning in 2021, I represented the Philippines. I feel like I was able to give back to my mom," Saso said at the trophy presentation. "This year I was able to represent Japan, and I