Danny edwards ended a two-year victory drought by making a 15-foot birdie putt at the 17th hole, breaking a three-way tie and winning the $300,000 Pensacola (Fla.) Open by one stroke.

Edwards was even with Gil Morgan and John Mahaffey when he birdied the par-3, 194-yard 17th. Edwards two-putted from 10 feet at 18 for par, securing his fifth PGA Tour triumph. Earning $54,000, Edwards closed with 67 and a total of 15-under-par 269.

Morgan, who shot a 67, and Mahaffey, whose sand shot at 18 saved par and gave him a 66, tied for second. John Cook and Ken Brown, who started the fourth round tied for the lead with Edwards, faded into the pack.

In the contest for the 1985 Vardon Trophy, for tour's best scoring average, Don Pooley shot 71 to beat out Lanny Wadkins, who had a 72. Wadkins needed to beat Pooley by seven shots at the Pensacola, the final PGA event that counts toward the 1985 trophy . . .

Australia won the $1.2 million Dunhill Cup team tournament with a 3-0 victory over the United States at St. Andrews, Scotland. Greg Norman tied the course record, 65, and beat Mark O'Meara by six strokes. Graham Marsh defeated Raymond Floyd, 71-74, and David Graham made it a rout by besting Curtis Strange, 69-72. The Australians shared $300,000, the U.S. team $150,000 . . .

It was Melbourne, Fla., not Melbourne, Australia, but Peter Thomson made himself at home, coming from four strokes off the lead with six holes left to pass Charlie Sifford by a shot and win the $165,000 Barnett-Suntree Senior Classic. Thomson shot three-under-par 69 for a 207 total and his ninth victory this year on the PGA Seniors tour. Second-round leader Lee Elder shot 73 -- 210 . . .

Beth Daniel outputted Betsy King, 1 up in the 36-green final, to win the J&B Gold Putter Award Playoff at Las Vegas' Desert Inn. Daniel won $50,000. Daniel became the first two-time winner in the seven-year history of the tournament for a select 16 LPGA players . . .

In Susuno, Japan, D.A. Weibring came from behind with a second consecutive six-under-par 65 and won the $280,000 Polaroid Cup Golf Digest tournament by two strokes over Yasuhiro Funatogawa. Weibring, 16 under par at 268, earned $46,500.