Defending champion Woody Blackburn eagled the 18th hole -- his ninth -- today to claim a share of the lead with five other players in the first round of the PGA Tour's $450,000 Andy Williams Open.

Larry Rinker and Larry Mize eagled the par-5 ninth on the North course at Torrey Pines golf course, to match Blackburn's 3 on No. 18, and carded 66s along with Blackburn, Danny Edwards, Robert Wrenn and Mark Wiebe.

Rookie Brian Mogg was a stroke off the pace, along with 1985 Kemper champion Bill Glasson, Paul Azinger, Richard Fehr, Andy Dillard and Rob Tway.

The six leaders played the North side of the seaside course and will tee off on the South side for the second round.

"It (the North course) is a couple of shots easier than the South course," Edwards said. "Obviously, you have to put up a good score on the North course."

Blackburn tore through the back nine, shaving five strokes off par in five holes, to lead at the turn.

Blackburn used a fairway wood to reach the 18th green. He putted from 50 feet for the eagle.

Blackburn, who scored the only individual victory of his 10-year PGA Tour career in this event a year ago, said, "It's nice to pick up where I left off a year ago." He took 67.25 strokes a round in this tournament last year and had a season-long scoring average of 72.32. His six-under-par effort is, by eight shots, his best score of the 1986 season.

Despite a chilly wind that swept in from the Pacific, Blackburn scattered nine 3s across his card and said he had "a good, positive feeling."

Tom Watson, a five-time British Open champion and twice a winner here, shot 69 at the South course. Masters champion Bernhard Langer of West Germany shot 70, also at the South.

The leaders who started on the North back nine -- Blackburn, Wrenn and Wiebe -- cooled off on the front nine, closer to the Pacific and more exposed to the breeze.