Ko Jin-young, who is set to participate in the US Women’s Open, the third major tournament of the season, has maintained her No. 1 spot in the world rankings for 160 weeks.She continued to rank first in the women’s golf weekly world rankings, extending her record for the longest time in the world rankings by another week.Ko Ji-woo, who won his first KLPGA Tour McCall and Mona Yongpyeong Open, jumped 37 steps to 103rd place.