DALY CITY -- Second-round leader Stacy Lewis said she tried to stay loose and upright during a rain delay on a soggy Friday at the Swinging Skirts LPGA Classic.

Lydia Ko had a different plan. She sat down, ate chicken soup and played cards.

"I was totally relaxed," said Ko, a teen sensation from New Zealand.

"She's 17 and I'm 29," added Lewis.

Lewis, the 2012 LPGA Player of the Year and a two-time major winner, weathered the storm and shot a 69 for a two-day total of 6-under 138 in the 72-hole event at Lake Merced Golf Club. She leads Ko and Karine Icher of France both by one shot.

Heavy early rain forced about a one-hour delay in the tournament, beginning at 12:45 p.m. Thursday's action was delayed for two hours because of heavy fog, forcing 24 competitors to complete their first rounds Friday.

Lewis, Ko and Michelle Wie were on the green of the par-4 seventh hole, the 16th of their round, when Mother Nature struck hard.

"Lydia was about to hit her putt when we kind of called her off and said, 'Don't hit it.' Because it started to hail a couple seconds later," Lewis said.

Ko, a rookie who burst onto the scene with four wins as an amateur in 2012, wanted to hit the putt but decided to listen to her elders. Wise move. She converted the birdie attempt when play resumed.

"Yeah, I was kind of crazy and out of my mind to think about putting that in the hail," Ko said.

Wie also birdied the seventh en route to a second consecutive 72 and is six behind the leader. South Korean Inbee Park, the world No. 1, made the biggest move of the afternoon rounds, after the sun emerged. She birdied 13, 14 and 15 to finish with the day's best round of 68, making her 3 under for the tourney.

Ko enjoyed a 17th birthday for the ages Thursday. Not only did she fire a 68 but she also was recognized on Time's "100 Most Influential People" list, released that day. Born in South Korea, Ko moved to New Zealand at age 6 to pursue golfing opportunities.

"She's a great kid. She gets it," Lewis said of Ko. "You can tell how humble she is. She doesn't really know how good she is, and she's not done yet. ... The Time Magazine thing, it's very much true of how influential she is right now."

Lewis, the top ranked American at No. 3 in the world, represents a comeback story. At 11, she was diagnosed with scoliosis, a deformity of the spine, and had to wear a back brace for 7½ years, at least 18 hours a day. She underwent surgery to insert a rod and five screws after her senior year of high school. But Lewis went on to enjoy a brilliant career at Arkansas.

Paula Creamer, a Pleasanton native, rallied after a rough first day to shoot 72 on Friday with birdies on Nos. 3, 16 and 17. She moved into a tie for 52nd with a total of 148 and extended her impressive streak of consecutive cuts made to 76.

Also making the cut was Juli Inkster of Los Altos, who shot a 74 for a 147 total, in her final full season on tour.

Icher, the first-round leader, shot a 1-over 73 and took the poor weather in stride.

"Rain delays are never fun, but it happens a lot of times when LPGA is in town," Icher said.

Leader board

The Leader
Stacy Lewis 69-69-- 138 -6
The followers
Lydia Ko 68-71-- 139 -5
Karine Icher 66-73-- 139 -5
The names
Inbee Park 73-68-- 141 -3
S. Pettersen 70-72-- 142 -2
Michelle Wie 72-72-- 144 E
M. Pressel 69-76-- 145 +1
Karrie Webb 74-73-- 147 +3
Juli Inkster 73-74-- 147 +3
P. Creamer 76-72-- 148 +4
Cristie Kerr 73-75-- 148 +4