Marianne Skarpnord battled her way through the impact of heat fatigue to capture her second ALPG Tour event in Ballarat on Sunday.
The Norwegian and 2015 Victorian Open winner overcame two late bogeys to take out the $30,000 Ballarat Icons Pro-Am by one shot at Ballarat Golf Club.
She finished with a 36-hole total of seven-under with rounds of 69 and 68.
Kim Kaufman from the United States and Celina Yuan.(NSW) tied for second.
Skarpnord made a strong start to be four-under through nine holes and then six-under after 12 (nine-under the tournament) for the round, but admitted the heat began to get to her as the temperature hit 40 on the fairways.
“All I wanted to do down the home stretch was finish.
“The back nine was so hot...too hot.”
Although the 32-year-old is a regular visitor to Australia, Skarpnord said she was not accustomed to the extreme heat day after day.
She is hoping to take the form to Barwon Heads on Thursday and win another Victorian Open.
Skarpnord is a 14-year veteran of the Europeon Women’s Tour, where she has won three events and finished as high as fourth on the order of merit.
She finished 15th last year and is hoping to return to the top 10 this year.
Queenslander and new US LPGA Tour member Robyn Choi began the second round one shot in front after a 66 on Saturday.
She led Englishwoman Hannah Bourke by two, with Skarpnord, Yuan and Leticia Ras-Anderica (Belgium) another shot back.
Bourke had a second round 71 to finish two back from the winner in equal fourth.
Last year's Ballarat pro-am winner Xi Lu Lin had the best round of the tournament with a 65 on Sunday.
This gave her a three-under total.
Beth Allen (USA), was another big mover on day two with 66, while Kaufman and qualifying tournament winner Piying Tsai (Taiwan) each had 67 to lock in top 10 finishes.