The most notable change in this week's women's golf world rankings came from Charley Hull of England, who jumped from fifth to third after winning the PIF Saudi Ladies International, the season opener on the Ladies European Tour.
With Hull rising to No. 3 behind Jeeno Thitikul of Thailand and Nelly Korda of the United States, Minjee Lee of Australia and Miyuu Yamashita of Japan each dropped one spot to fourth and fifth, respectively. These three players account for all changes in the world's top 10. Kim Hyo-joo and Kim Sei-young held their positions at ninth and tenth.
With no LPGA Tour event last week, players who performed well at the PIF Saudi Ladies International saw significant ranking improvements.
Choi Hye-jin, who posted the best result among 19 South Korean players in the tournament with a tied-fourth finish, achieved a new career-high ranking. Choi began the year at her previous career-best of 16th, slipped to 17th last week, but climbed two spots to 15th this week. She appears to be making a serious push toward the world's top 10.
Yun I-na, who finished tied for sixth at the PIF Saudi Ladies International, also halted her decline and finally turned her trajectory upward. After falling to 69th last week, Yun rose three spots to 66th this week.
Ko Ji-won and Park Hye-jun, who both finished tied for ninth, also improved their world rankings. Ko climbed from 81st to 75th, while Park rose from 103rd to 99th.