R1 LEADERBOARD -8 K Triplett (US) -6 R Sabbatini (SA), F Jacobson (Swe), S Appleby (Aus), B Quigley (US) -5 J Delsing (US), H Slocum (US), N Begay III (US), L Donald, M Weir (Can), C Beckman (US)

The run gave Triplett a course record eight-under-par 64 to put him ahead of Fredrik Jacobson, Stuart Appleby, Rory Sabbatini and Brett Quigley.

England's Luke Donald is three shots off the lead after a round of 67 which included just one bogey.

Tiger Woods, on his return after a three-week break, fired a 69.

The world number one, who had three birdies in a bogey-free round, struggled off the tee and hit only four out of 14 fairways.

"I only hit two really bad tee shots. The others were just a little bit overdrawn or a little bit overcut. I was over-shaping the shots," he said.

"It is a very easy fix, I can go on the practice range here and fix it real quick. I am pretty excited about the second round."

In-form Fijian Vijay Singh, who has won the last two events, carded a 68 while US Masters champion Phil Mickelson recorded a 70.

Triplett has won twice on the USPGA tour with his last victory coming last year at the Reno Tahoe Open.

The 42-year-old, who birdied six of his last eight holes, said: "It just kind of felt like my day towards the end.

"I had hit a number of good shots and was playing nice golf. I birdied two and that got some momentum, those were my 11th and 12th holes.

"I know I can put up the numbers that are necessary for me to make a living out here.