After becoming the first players from their nation to lift a men's doubles Grand Slam title at Wimbledon in July, the top seeds beat their opponents 6-4, 7-5 in a match that lasted for more than 90 on Friday at the Arthur Ashe Stadium.
The Colombian pair have become just the third men's doubles team since 2003 to win both Wimbledon and the US Open in a single season and are the first South American team ever to lift the US Open trophy in the Open era.
The reigning Wimbledon champions committed 32 winners to just 8 unforced errors, while Granollers/Zeballos combined to hit 23 winners to just 8 unforced errors.
During the trophy ceremony, Farah spoke about Roberto Cocheteux one of the foremost supporters and sponsors of tennis in Colombia who had passed away right before the tournament.
"We couldn't go to his burial because we had to stay here," Farah said, while Cabal held his tears as per the official website of the tournament. "It was very tough for us, and so we said we would dedicate this tournament to him, and there's no better way to dedicate (a tournament) than to win it."
"We're living a dream. It was really difficult times two weeks ago. We made a decision to fight for it, to play for him and we honour him right now. We're happy we can do this for him, and hopefully he is in the sky watching us," added Cabal.
( With inputs from IANS )