Norway's Suzann Pettersen carded a course record-equalling nine-under-par 63 to claim a five-shot lead at the halfway stage of the Deutsche Bank Ladies Swiss Open at Golf Gerre Losone.
Pettersen finished on 14 under par after claiming nine birdies to match that of first round leader Rebecca Coakley from Ireland, who had a 63 on the opening day.
Pettersen began her second round four shots behind Coakley in a share of second with six others on five under, but starting from the 10th she birdied her first four holes to draw level.
She then recorded further birdies on holes 16 and 18 for an outward total of six-under 31 and a two-shot lead over Coakley who had not started her round by that point.
Three more birdies at the third, sixth and ninth holes gave the 27-year-old from Oslo an inward total of 32 for a five-shot clubhouse lead.
Pettersen said: "I've just got to keep going and keep doing what I'm doing because it feels good, especially my wedges.
"It feels like I can attack any pin. I feel a lot more comfortable with my irons, which makes you want to be very aggressive on every hole and sometimes you have to be a little careful. It's a great feeling."
Amy Yang, the 2006 ANZ Ladies Masters champion from South Korea, shot a four-under 68 to move into outright second on nine under.
England's Lisa Hall shot 69 to lie third place on eight under, while six players including Coakley shared fourth on seven under.
Coakley carded a 74 and said: "The front nine was good but on the back nine I hit a few bad iron shots and didn't get up and down.
"There were a lot of putts that shaved the hole whereas yesterday they were all going in."
Also on seven under are Belgium's Ellen Smets (66), Norway's Marianne Skarpnord (66), England's Laura Davies (68), Spain's Paula Marti (70) and France's Ludivine Kreutz (67).
The celebrations continue
Coppa Italia Round-Up
HAPPY RETURN FOR PETTERSEN
