Jane Park , Karrie Webb and Marina Alex share top spot at rain-delayed US Women's Open

Caddies talk as golfers warm up before play resumed in the first round of the U.S. Women's Open golf tournament at Lancaster Country Club, Friday morning, July 10, 2015, in Lancaster, Pa. Play was suspended the day before after a storm packing high winds, lightning and heavy rain pounded the area. (AP Photo/Frank Franklin II) (The Associated Press)

Brittany Lincicome tees off on the 15th hole during the first round of the U.S. Women's Open golf tournament at Lancaster Country Club, Friday, July 10, 2015, in Lancaster, Pa. Play was suspended the day before after a storm packing high winds, lightning and heavy rain pounded the area. (AP Photo/Frank Franklin II) (The Associated Press)

LANCASTER, Pa. – Jane Park made a birdie and four pars as play resumed at the U.S. Women's Open, moving the American into a three-way tie for the lead after the rain-delayed first round.

The 2004 U.S. Amateur champion is tied with Karrie Webb and Marina Alex at 4-under 66. Na Yeon Choi, the 2012 U.S. Open winner, and Amy Yang are a stroke back.

Top-ranked Inbee Park returned to complete her opening round Friday and got to within a shot of the lead before a bogey at No. 17 left her two shots back, in a pack of eight players at 2-under 68.

A total of 55 golfers were forced to complete their first rounds starting 6:45 a.m. Friday, after play was suspended Thursday evening by a strong storm that pounded Lancaster Country Club with high winds and heavy rain. The second round started at 7:15 a.m. Friday.