YANGMEI, Taiwan (AP) -- Paced by a hole-in-one, defending champion Suzann Pettersen shot a 3-under 69 to take a five-stroke lead after the second round at the Sunrise Championship on Friday.
Pettersen's ace on the 133-yard second hole helped her finish at 7 under after 36 holes, comfortably ahead of Sun Young Yoo and Carlota Ciganda at 2 under.
"It was a very good shot," the Norwegian said. "I called the shot, hit it exactly how I wanted and was fortunate enough that I had a good break."
Pettersen's hole-in-one, the 19th on the U.S. LPGA Tour this year, came on one of the two holes she bogeyed on Thursday en route to a 68.
Her drive on Friday landed near the center of the green, about 10 yards from the cup, before rolling in.
Yani Tseng, the 2011 Sunrise champion, shot a 6-over 78, leaving her 17 strokes off the pace.