Ai Miyazato tees off on the 15th hole during the LPGA Titleholders golf tournament at Twin Eagles Golf Club in Naples, Fla., Friday, Nov. 16, 2012. (AP Photo/Naples Daily News, William DeShazer)

Naples, Florida - Japan's Ai Miyazato collected nine birdies in an eight-under par 64 on Friday to take a one-shot lead midway through the LPGA tour's season-ending Titleholders tournament.

Miyazato, seeking a third victory this season, had just one blemish on her card, a bogey at the par-five second hole.

She more than atoned, with five birdies on the front nine and four more on the back at TwinEagles for a 10-under total of 134

after two rounds.

She was one shot in front of South Korean Na Yeon Choi, the US Women's Open champion who carded a 68 for 135.

South Korea's Sun Young Yoo, part of a trio sharing the first-round lead, was two shots adrift until she was assessed a one-shot penalty for an improper drop.

That gave Yoo a one-under 71 and put her in a tie for third on 137 alongside France's Karine Icher (70), American Brittany Lincicome (69) and overnight co-leader Suzann Pettersen of Norway (71). - Sapa-AFP