What it means: Park moved into the No. 1 spot Monday when the new rankings came out, but Lewis nearly took it right back on Sunday. Starting the weekend nine shots behind Park, Lewis closed with rounds of 64-69 and made Park work for her third title of the season. Lewis opened with three straight birdies, and she was in position to tie Park heading into the back nine when Park made one of the best bogeys you'll ever see on No. 9. After almost hitting into the water twice, Park chipped in for a 5 on the par 4 and kept a one-shot lead. Her lead went back to two after Lewis bogeyed 13, and Park shut the door on Lewis's hopes when she stuffed her tee shot on the par-3 17th to 3 feet for an easy birdie.
Round of the day: Surprise, surprise, it was Ko. She made six birdies and no bogeys for a 66 and a solo-third finish. Lewis, Park and Ko are Nos. 1-3, respectively, in the Race to the CME Globe with just two events left before the Tour Championship.
Best of the rest: Munoz birdied three of the final five holes to shoot a 3-under 69 and finish fourth. She also moved into the ninth spot in the CME rankings. The top nine heading into the Tour Championship have a chance at the $1 million prize in the season-long points race.
Biggest disappointment: Shanshan Feng joined Park and Lewis in the final group, but she struggled to a 4-over 76 and admitted she was exhausted after playing five straight events.