American golfer Boo Weekley wins at Fort Worth, his first US PGA Tour victory since 2008

Boo Weekley won the $A6.64 million US PGA Tour title in Fort Worth, Texas on Monday (AEST), firing a final-round 66 to claim his third career title, and his first since 2008.

Weekley, whose career has been hindered by injury since he won back-to-back titles at the Heritage in 2007 and 2008, had six birdies in his second straight 66 at Colonial Country Club for a 14-under par total of 266.

He finished one stroke in front of overnight leader Matt Kuchar, with 2012 champion Zach Johnson alone in third a further stroke back.

Weekley's six birdies included a burst of three in a row from the eighth hole.

He moved to 14-under for the tournament when he rolled in a 21-foot birdie putt at the par-5 13th.

Weekley held a two-stroke lead when he arrived at 18, where his long birdie putt kissed the edge of the cup but did not drop.

He tapped in for par after Kuchar, two strokes adrift and playing in the final group behind him, sent his tee shot at 18 left.

Kuchar recovered to birdie the last, completing a 68 that gave him sole possession of second place on 267, with Johnson already in the clubhouse on 268 after a final-round 66.

"We're back," said Weekley, who has battled various injuries since hurting his shoulder in 2009. "We finally made it back."

Weekley had shown signs that his game was coming around. He came into this week with three top-10 finishes in 2013, but had missed the cut in the Byron Nelson Championship last week.

Scott Stallings (66), John Rollins (68) and Matt Every (69) shared fourth on 269.

The leading Australians were Stuart Appleby, who finished with a 3-under round for a 1-under total, and Marc Leishman, who shot a final round 73 to finish level with his compatriot in a tie for 46th place.

The other Australian to make the cut was Greg Chalmers, who finished with a 73 for a total of 2-over 282.