Wales won the WGC-World Cup after heavy rain and thunderstorms forced the cancellation of Sunday's final round on the Algarve.
Stephen Dodd and Bradley Dredge of Wales had been two strokes ahead of England's Luke Donald and David Howell and Sweden's Niclas Fasth and Henrik Stenson at the end of the third round at the Victoria course on Saturday.
Dodd and Dredge, who were 27-under-par following Saturday's fourball format, collected $700,000 apiece after organisers decided to pay out full prize money for the 54-hole World Golf Championship event.
It was the second World Cup triumph for Wales, who also won in Hawaii in 1987.
The last time a World Cup was badly hit by the weather was at Las Brisas, Spain in 1989 when Australians Wayne Grady and Peter Fowler won a 36-hole tournament.