Great Britain and Ireland began the day one point behind Continental Europe in the Seve Trophy but fought back strongly to take the event 16½-11½.
The home side dropped only two points in the Sunday singles at The Heritage in Ireland.
Great Britain and Ireland captain Nick Faldo will look to repeat the victory when his European side take on the USA next year in the Ryder Cup.
?I thought it was a great week,? said Faldo. ?All 20 players did their bit and I was delighted with my team. They obviously wanted to win and came through. I don?t know what inspired them but everybody did his bit.?
This was Great Britain and Ireland?s fourth win out of five since the event began.
It was a similar story in Montreal where a strong American team defeated the International side in the Presidents Cup.
Jack Nicklaus? American team dominated proceedings and looked comfortable all week against Gary Player?s International side. The final score was 19½-14½ with Stewart Cink claiming the winning point against Nick O’Hern.
“We came into this week with a little score to settle in the international arena and we showed everybody that we can play,” said Cink.
Despite the International team losing Mike Weir provided the Canadian crowds with plenty to cheer about in Montreal with a 1up victory over World Number One Tiger Woods. Phil Mickelson claimed his first singles victory in seven Presidents Cup appearances with a convincing 5 and 4 win over Vijay Singh.