Just as she had yesterday, Ko bogeyed her opening hole but quickly recovered with birdies at her 2nd and 4th holes. Outstanding par saves at the 11th and 14th holes were countered by a bogey at the 12th but birdies at the 13th and 18th saw her finish with a round of 70.
With just one top ten in eights starts this season this is an encouraging start to the inaugural staging of this event although she has won over this layout on two previous occasions when the Swinging Skirts event was played at this venue.
A return to a venue where she enjoys such positive memories is playing its part for the New Zealander who turned 21 this week.
Monday qualifier, Annie Park, at 8 under and Charley Hull at 7 under are between Ko and the leader but there were certainly indications today that Ko is on the edge of a much better finish than has been the case for some time.
The ever-improving Moriya Jutanugarn is tied for 5th with Sei Young Kim.
Korda won earlier in the season in Thailand and has continued to play well since. The 2012 Australian Open Champion is in line for what would be her 6th LPGA Tour title should she win this week.
It's only Friday but @Thejessicakorda has led both days and doesn't look to slow down anytime soon!April 28, 2018
Australian chances remain strong with Minjee Lee and Su Oh five shots from the lead in a share of 7th place, three consecutive bogeys in the middle of her front nine proving costly for Lee who won the US Junior Girls Championship here in 2012.
Hannah Green is in 35th place at even par and nine shots from the lead.
RULES : UNATTENDED FLAGSTICK
Want video tips delivered straight to your inbox? Subscribe to iseekgolf.com newsletters.