Tiger Woods went undefeated for the week as his United States side came from behind on the final day to clinch a 16-14 victory over Ernie Els' International team at Royal Melbourne.
Woods, who went 3-0 for the week in his playing captain role, earned a valuable first point for the United States in the Sunday singles when taking care of Abraham Ancer in the top match 3&2.
The 15-time major champion sealed the deal when walking in his putt from 20 feet at the 16th hole.
Woods' convincing victory in the top game moved the US to within a point of the Internationals with the score at 10-9.
Tony Finau and Hideki Matsuyama could not be separated in the next game, but Patrick Reed levelled the scoreline at 10.5-10.5 when picking up his first point of the week with a convincing 4&3 victory over CT Pan.
Reed had to also go about his business without his normal caddie on the bag, after he was suspended by the PGA Tour for "shoving" a fan in the crowd on Saturday.
Dustin Johnson also won 4&3 against Haotong Li to put the United States in front for the first time since the opening match of the week.
Bryson DeChambeau halved his match with Adam Hadwin in the next game, before Sungjae Im levelled the scoreline at 12-12 when taking care of US Open champion Gary Woodland (4&3).
But it was the next wave of matches that proved decisive for Woods' team as they sailed into the sunset at 15-12.
Patrick Cantlay took down Joaquin Niemann (3&2), before Xander Schauffele beat Adam Scott (2&1) and Webb Simpson defeated Byeong Hun An (2&1).
Cameron Smith got a point back on the board when coming from 3 down to beat in-form Justin Thomas 2&1, but it was too little too late for Els' team as Matt Kuchar sealed a halve against Louis Oosthuizen to make it an official US victory.
Rickie Fowler also halved with Marc Leishman in the final game to bring the score to 16-14.
The victory marks an eighth consecutive win for the United States in the Presidents Cup, and an 11th in the 13 biennial matches.
"We did it together," said Woods, who recorded a 27th win in the tournament, beating Phil Mickelson's record of 26. "We came here as a team. My teammates and my boys all played well, the captains did an amazing job.
"It's been one of the more amazing challenges but all the guys believed in one another and relied on one another."