Australians Karrie Webb and Sarah Jane Smith were four shots off the lead when darkness ended play during the second round of the LPGA Tour’s JTBC Founders Cup.

The pair were seven-under-par for the tournament, with Korea’s Ha Ha Jang leading the way at 11-under with seven holes of her second round remaining.

Webb backed up her first-round five-under 67 with a 70 on Friday, while Smith had a 70 to join her celebrated compatriot in a tie for eighth.

World No.1 Lydia Ko was also seven-under after picking up one shot on Friday before play was suspended with the New Zealand teenager on the 12th hole.

Only half of the 132 players finished the second round.

Jang birdied her final four holes to reach 11-under, one in front of fellow South Korean Hyo Joo Kim.

Kim played 30 holes on Friday in the tournament that fell behind on Thursday when rain delayed the start by four hours.

The Evian winner last year in France for her first major title, Kim completed a 65 in the first round and had a 69 in the second.

“I was sleepy this morning,” Kim said. “I just played relaxed and I just think to myself, ‘Hit soft.’ That’s the key for me.” Americans Stacy Lewis, the 2013 winner, and Kim Kaufman were nine-under.

Defending champion Webb was pleased to reach the clubhouse in touch.

“It was a long day, early morning,” Webb said. “I think I made the most of the conditions this morning with the greens being freshly mowed.