Published: Nov 24, 2011 3:47 AM EST
Updated: Nov 24, 2011 7:30 AM EST

COOLUM, Australia (AP) - South Korean Choi Joon-woo shot a 6-under-par 66 Thursday to take the early clubhouse lead by one stroke over American Bubba Watson and Australian Aaron Townsend at the Australian PGA.

With most of the morning threesomes having completed play, and thunderstorms forecast for the afternoon, British Open champion Darren Clarke was three strokes back after a 69, including a missed 60-foot birdie putt from off the green on the ninth - his last - that curled around the back of the hole.

Clarke was in the same group as Adam Scott (70) and Greg Norman (72). Scott made a huge recovery from his opening 40 - including a triple-bogey 6 on the par-3 11th - to shoot 6-under 30 coming home.