Karrie Webb recovered from a back-nine lapse to card a 3-under 69 and maintain her lead at the HSBC Women's Champions after Friday's second round.
The Australian veteran had two bogeys on No. 13 and 15, but finished with a birdie on the 17th hole to reach 9-under 135 and open a two-stroke lead over American Angela Stanford.
Stanford, the 2012 champion, also shot a 69, while Taiwan's Teresa Lu was in third place at 6-under after shooting a 70.
Webb, a seven-time major winner, has played some of her best golf in recent years this month. Two weeks ago, she captured her fifth Australian Open title in Melbourne, and now she holds the lead going into the weekend against a tough field in Singapore.