Park holds the top spot with a ranking average of 12.87 points. Ko is at 12.38.
Ko could overtake Park with a victory or second-place finish this week at the Sime Darby LPGA Malaysia, according to LPGA projections. They’re also locked in tight battles for Rolex Player of the Year, the Vare Trophy and the LPGA money title.
If Ko wins this week, she’ll move to Rolex No. 1 if Park finishes in a three-way tie for second or worse.
If Ko finishes solo second, she’ll move to No. 1 if Park finishes solo 40th or worse.
Park has reigned as Rolex No. 1 for the last 16 weeks. Ko held the top spot for 19 weeks before Park took it from her on June 15. Ko originally gained the No. 1 spot from Park.
Park also leads Ko in the Rolex Player of the Year points race. Park has 243 points and Ko has 224. A victory is worth 30 points. Park leads the tour in scoring average at 69.44. Ko is second at 69.53. Park also leads in money winnings with $2,316,422 in earnings. Ko is second at $2,190,922 in earnings.