The Fitzpatricks missed the cut in last year’s Zurich Classic and finished in a tie for 11th in 2024.
But this victory earns them a cheque worth £1m.
“It was a struggle,” Matt, who won the 2022 US Open, said.
“I was doing zero to help him but he was fantastic on the back nine. I said ‘just give us a chance on the last to hit a bunker shot like that’.”
“It means the world. I’m absolutely speechless, it was a grind today but he was unbelievable and I could not be more proud.”
The event was played over four rounds, with teams of two alternating between fourball (best ball) in the first and third rounds and foursomes (alternate shot) in the second and fourth rounds.
Matt, 31, already had two wins this year, including last week’s RBC Heritage.