Lydia Ko and Ariya Jutanugarn tee it up in a pivotal week in the Rolex Player of the Year race.
Ko can take back the lead in the points race if she wins the Toto Japan Classic this week.
Jutanugarn can clinch the award with a victory.
Ko and Jutanugarn will each tee it up just one more time after Japan, in the season-ending CME Group Tour Championship in Naples, Fla., in two weeks.
“At the end of the day, we are just trying to play good golf out there,” Ko said in Japan.