South Korea's Song Bo-Bae sank a birdie on the last hole to take a one-stroke lead after the second round at the USLPGA Tour Mizuno Classic golf tournament on Saturday.

Starting the day two strokes off American overnight leader Brittany Lang, Song carded eight birdies against one bogey for a two-round total of seven-under-par 133.

Japan's Akane Iijima hit the day's best 64 to share second place with Kim In-Kyung of South Korea, with another Japanese, Rui Kitada, one stroke further back in fourth place.

Defending champion and world number two Shin Ji-Yai of South Korea was tied in fifth place with her rival on the US Tour money list Ai Miyazato, Japan's 2007 champion Momoko Ueda, Lang and four other golfers.

World number one Lorena Ochoa of Mexico was tied at 29th place on 140 with nine other golfers.