Charley Hull and the Lydia Ko renown temple moved after two towers of the HSBC women’s world championship.
The Olympic gold medalist Ko moved to a head shot with a 67 under five.
The Englishman Hull, who carded three birdies in his first round 69, is tied in third place with Hyoo Joo Kim (66), two head shots.
Ko, New Zealand of South Korean origin, had a total of two towers of six-mine of 138 on the Tanjong course at the Sentosa Golf Club. The head of the first round, in Lim Kim, kept his head after 36 holes with a 69 Friday.
The regular KO struck 11 of the 14 Fairways and 16 of the 17 Greens in regulation in its Tour without Bogey.
“I do not think that I generally play very well on this golf course and I thought that this year would be a happy new year to return this,” said Ko.
“The scores haven’t really been so low in recent days. I’m just trying to focus on me and I hope to continue climbing in the ranking.”
Reigning champion Hannah Green fired 69 years and was on the level of 144, at Angel Yin, who won the LPGA Thailand event last week.
The Singapore field includes nine of the 10 best players in the world ranking – and 13 of the first 15 – less Nelly Korda and Rose Zhang.
The latest LPGA Asian Swing Asian Swing Asian event will be played next week in Hainan Island, China.
Look at the HSBC women’s championship throughout the week live on Sky Sports. The live cover continues on Saturday from 2:30 am on Sky Sports. Get sky sports Or Stream without contract now.