Sakura Yokomine squandered sole possession of first place with a bogey-laden 76, and South Korea's Lee Bo Mee moved top of the leaderboard Saturday going into the final round of the season-ending Japan LPGA Tour Championship.

Yokomine, who has yet to win this season despite coming close on several occasions, started the day one stroke clear of Lee but unraveled with five bogeys against just one birdie on the ninth at Miyazaki Country Club, dropping six shots off the pace in a tie for third with South Korea's Shin Hyun Ju.

Lee, who has two wins this season at the Yokohama Tire PGR Ladies Cup and the Itoen Ladies, spread four birdies around a bogey at the 10th to reach 10-under 206, two strokes ahead of compatriot Park In Bee.