Angel Yin rammed in a 30-foot par putt on her opening hole, setting the tone for a day of big putts and 3-under 69 that gave her a two-shot lead Friday in the CME Group Tour Championship and the chase for the $4 million prize.

Fishburn, who already has locked up his card for next year, was at 11-under 131 and led McNealy and Lee Hodges (63) going into the weekend. Michael Thorbjornsen had a 69 and was the only player who had to face Seaside on Friday who was among the top five.

Sometimes, one little swing thought can change everything—even for the best player in the world. World No. 1 Nelly Korda bumbled to an even-par 72 on Thursday at the CME Group Tour Championship, a round well below her standard.