Australian Robert Allenby carded a four-under-par 68 to win his second PGA Tour title of the season and fourth of his career at the Pennsylvania Classic yesterday.
Australian Allenby took a three-shot lead into the final round at the weather-plagued event and retained that advantage on the final day to collect the $400,000 top prize.
His lead was never seriously threatened during the day.
Britain's Edward Fryatt shot a second successive 73, despite four birdies, to finish tied 52nd, while Sweden's Per-Ulrik Johansson, the leading European, also had a disappointing final round.
His closing 73 left him tied 33rd on four under.
Titles have been commonplace for Allenby, but claiming them in regulation has not.
Each of his first three PGA Tour wins - all since April 2000 - came in play-offs, and he has won all seven of his career play-offs worldwide.
Allenby joined exclusive company, becoming the third US Tour member to win four titles in the past two seasons.
The others are Tiger Woods (14) and Phil Mickelson (six).
After bogeying the 72nd hole for a 19-under-par 269, Allenby was greeted by golf legend Arnold Palmer, a Pennsylvania native who was responsible for bringing a PGA Tour event to the Laurel Valley Golf Club.
Former Masters champion Larry Mize matched the low round of the day with a seven-under 65 and tied local favourite Rocco Mediate for second place at 16-under 272.
Eleven players, including Allenby, were forced to return to the course yesterday morning to complete their third rounds after rain and fog hampered play over the first three days of the event.
The eventual winner had three holes left when play resumed and picked up one more birdie, at the par-four 16th, for a 66 that left him at 15-under-par 201 with one round remaining.
LEADING FINAL ROUND SCORES (US unless stated): 269 - R Allenby (Aus) 70 65 66 68. 272 - L Mize 73 67 67 65, R Mediate 69 68 67 68. 273 - K Sutherland 76 65 64 68. 274 - N Price (Zimbabwe) 66 71 68 69. 277 - J Williamson 74 68 67 68, M Gogel 70 73 66 68, S Elkington (Aus) 70 68 69 70. 278 - G Hnatiuk (Can) 70 73 66 69. 279 - C Beckman 70 71 65 73. 280 - J Furyk 72 72 68 68, P Stankowski 70 72 70 68, R Gamez 70 73 73 64, C Howell 68 74 66 72, C DiMarco 69 70 69 72, J Hart 70 71 68 71, J Haas 74 66 66 74. 281 - J Smith 71 69 72 69, O Browne 69 71 72 69, J Ogilvie 75 69 72 65, F Funk 69 68 70 74. Other scores: 284 - P-U Johansson (Sweden) 67 73 71 73 288 - E Fryatt (Brit) 71 71 73 73.
