Taiwan's Tseng tops tight LPGA leaderboard (AFP)

Tseng delivered a more sedate round of three birdies and one bogey
Scott Halleran, AFP/Getty Images

World number one Yani Tseng fired a two-under par 70 to grab a one-shot lead over five players, as the second round of the LPGA Founders Cup produced a log-jammed leaderboard.

A day after she played one stretch of seven holes in seven-under, Tseng delivered a more sedate round of three birdies and one bogey on the Wildfire Golf Club course.

After teeing off on 10 she parred her way through the back nine—the same stretch where she caught fire on Thursday—making her first birdie of the day at the par-four first.

After her only bogey of the day at the par-three sixth, the Taiwanese star birdied seven and eight.

South Korea's world number two Na Yeon Choi carded a 69 to head the group on 136.

She was joined by South Korea's I.K. Kim, who climbed up the leaderboard with a 66 and compatriot Meena Lee who carded a 67. Japan's Mika Miyazato posted a 67 and compatriot Ai Miyazato a 68 to complete the group sharing second.

Tseng, coming off a mammoth 2011 season that included 12 global titles—seven of them on the LPGA tour and two of them at major championships—last month successfully defended her LPGA title in Thailand.

Defending champion Karrie Webb of Australia carded a 69 and was among a group lying two shots off the pace on 137 that also included former world number one Jiyai Shin (71).