The Lydia Ko-Inbee Park duel took a back seat on Day 1 of the CME Group Tour Championship, as Austin Ernst grabbed the early lead in Naples, Fla., and Sei Young Kim grabbed the wheel in the season-long Race. Here’s how the opening round played out at Tiburon Golf Club.
Leaderboard: Ernst (-6), M.H. Lee (-5), Kim (-4), Cristie Kerr (-4), Brittany Lincicome (-4), Jaye Marie Green (-4), Gerina Piller (-4), Jennifer Song (-4)
What it means: Through 18 holes, Kim is the projected Race to the CME Globe winner.