Tiger Woods comfortably claimed his fourth consecutive Buick Invitational title by eight shots at Torrey Pines but was still left feeling slightly disappointed by his final-round one-under-par effort of 71.

The world number one triumphed with a score of 19 under par to finish well ahead of second-placed Ryuji Imada, who carded a five-under-par  round of 67, and enjoy his sixth overall success in the event.

However, Woods recorded four bogeys over his final 18 holes to return a score in the 70s for the first time since the Deutsche Bank Championship last September.

"Today, I wanted to go out there and shoot an under-par round and have no bogeys," Woods said. "I got half of it right."

Woods has dominated the Torrey Pines course, venue of this year's US Open, in much the same way the 32-year-old ruled Bay Hill from 2000 to 2003 and he has now won the Buick in five of the last six years.

"This course has been really kind to me," he said. "Ever since junior golf all the way through my professional ranks, I've somehow really seemed to have played well here. It fits my eye. I feel very comfortable here.

"It's just one of those things where some people just have an affinity for certain golf courses," Woods added.

"My buddy (Mark) O'Meara won five times up at Pebble Beach, I guess Sam (Snead) at Greensboro and (Jack) Nicklaus at Augusta. Guys that have won a number of times at certain venues and somehow this golf course seems to have been pretty good for me."

It was also a 62nd victory for Woods, who drew level with Arnold Palmer on the PGA Tour's all-time winners list. Only Sam Snead (82), Jack Nicklaus (73) and Ben Hogan (64) now lie ahead of him.

Woods began the final round with a healthy eight-shot lead, the second-biggest advantage during his career after the 10 shot cushion he held going into the final round of the 2000 US Open at Pebble Beach.

He extended it to nine with a birdie at the first first hole and it soon became 10 when he picked up another shot at the sixth before a bogey, only his second of the tournament, at the seventh saw him complete the front nine in 35.

Woods made three birdies on the back nine but also recorded three consecutive bogeys to clinch victory in relatively low-key fashion.

Imada, on the other hand, stormed up the leaderboard from a tie for eighth into second after sinking nine birdies against four bogeys while Stewart Cink, who began the final round in second place, shot a one-over-par 73 to finish in a tie for third alongside Rory Sabbatini at nine under.

"My goal going into today was to finish second, and you know, that's almost like winning the golf tournament to me," Imada said. "With Tiger having an eight-shot lead or whatever there was pretty much no chance for me to catch him."