Her most recent victory was in July.
Katherine Kirk will take a two-shot lead into Friday's second round of the Australian Open at Royal Adelaide.
Kirk told the Daily on Wednesday she was disappointed with her results in 2016 so this represents a flawless opportunity for the 34-year-old to recapture the sort of form which has seen her win two events on the prestigious LPGA Tour.
"Even though there has been a lot of changes, I don't think I have ever been this excited to come off a break in December and get back into training and into preparing for the season", Ko told reporters at the Royal Adelaide Golf Club yesterday.
Next week: Honda LPGA Thailand.
Jutanugarn tees off in tomorrow's first round at 12.34 from the first.
She said Royal Adelaide was a different kind of challenge to The Grange, nearly next door, where the event was held a year ago.
"This year, my target, I won't worry about the ranking at all", she said.
"The course here is not long, so players can shoot a lot of scores". She will play the first two rounds with defending champion Haru Nomura and England's Charley Hull.
Here are some other things to know about the LPGA tournament which will help Royal Adelaide celebrate its 125th anniversary. All four players ranked inside the top-10 of the current Rolex Rankings who are in the field shot under par on Thursday: No. 8 Brooke Henderson (T9, -4), No. 6 Ha Na Jang (T17, -3) and No. 2 Ariya Jutanugarn (T41, -1). "(World No. 1) Lydia Ko has done an incredible and awesome job.
But she believes we haven't seen the best of her yet.
"I was nervous last night trying to sleep but once I'd hit that first tee shot I felt good".
Of the 16 players that are now T10 or better, only four have won on the LPGA Tour - Katherine Kirk (2 wins), Chella Choi (1 win), Lizette Salas (1 win) and Brooke Henderson (3 wins).
GETTING A (NEW) GRIP: Wie is back for the first time since 2012 at the Women's Australian Open, where she missed her cut in her only previous appearance in this event.
Malaysia's only LPGA player Kelly Tan has prepared by spending time with her Australian coach Ian Trigg during tournament week after finishing in a tie for 47 with Jutanugarn at last month's season-opening LPGA event in the Bahamas.
"In the afternoon, it's always tougher", she said, "so I'm really happy that I can play really well and I really look forward to tomorrow". "Something bad would happen if that were to be the case". Davidson qualified for the Australian Open by virtue of her win in the Australian Junior Championship in 2016.
"Hopefully, a few more putts drop throughout the week and go from there". I couldn't let not making an Olympics bring all of that down. "I either hit every green or was right on the fringe where I was still able to putt, so I gave myself a lot of chances and took advantage when I had wedges in my hands".