Lydia Ko is five shots off the pace after the opening round of the LPGA Tour's season finale in Florida.
Ko's three-under 69 looked solid on paper, but it came amidst an under-par scoring spree at the CME Group Tour Championship with 18 players at 67 or better.
It was a relatively quiet day for Ko, who cracked the top 10 in the all-time LPGA prizemoney list after finishing in a tie for second place at the Pelican Women's Championship last week. Four birdies and a lone bogey highlighted a consistent round that left her in a tie for 25th place on the leaderboard.
Meanwhile, last weekend's winner Nelly Korda delivered the round she needed with a 6-under 66 that left her two shots out off the pace and gave her a good start toward winning LPGA Tour player of the year.
Former US Women's Open champion Jeongeun Lee6 didn't make a birdie on rain-softened Tiburon Golf Club until the sixth hole, and then she didn't stop. She finished with three straight birdies for a round-leading 8-under 64.