The US recaptured the Ryder Cup with a 19-9 record win over Europe in the Whistling Straits in Wisconsin.
Open champion Collin Morikawa scored half the victory point in the fifth of twelve individual games on Sunday when the home side snapped up the 14½ points they needed.
Rory McIlroy, Lee Westwood and Ian Poulter – Europe’s only singles winners – burst into tears as they displayed the emotions of sobering defeat.
American players celebrated around them, and Brooks Koepka drank a beer tossed to him by fans after taking a 2 & 1 win on the 17th.
Patrick Cantlay, Scottie Scheffler and Bryson DeChambeau had already achieved great victories in a carnival mood on Lake Michigan, while Dustin Johnson became the first American to win all five Ryder Cup games since 1979.
So big were the celebrations that Koepka and DeChambeau, embroiled in a longstanding feud, hugged briefly at the post-game media conference. US captain Steve Stricker said they “wanted to play together”.
“This is a special day for everyone involved,” added Stricker, who, as a Wisconsinite, struggled to contain his emotions.
“The Ryder Cup means a lot to everyone, yours and ours. We finally showed a dominant performance.
“This is a new era here, they are young, motivated, they came here to win.
“I’ve never won a major. But that’s my major.”
Europe captain Harrington admitted: “It’s a heavy defeat, but they were better than us. They were a strong team and they played at their best. They had momentum all along.”
The winning margin dwarfs Europe’s 18½-9½ successes in 2004 and 2006 and America’s own triumph in 1981.
This was a well-deserved win built on a dominant opening game by the hosts over two days.
After the four-ball and four-ball sessions on Friday, they led 6: 2 and expanded this to a record of 11: 5 on Saturday to only win 3½ of the 12 individual points available.
Harrington spoke on Saturday night of harnessing the spirit of 2012 when the guests, 10-6 back, won the Miracle of Medinah – the only away win in the last eight editions – to inspire his team.
He put McIlroy, who had lost all three of his matches, out first and the Northern Irish immediately put European blue on the scoreboard by winning the first hole against Olympic champion Schauffele.
And when Harrington’s compatriot Shane Lowry finished second in game two, the few European fans who had made it into Whistling Straits that week began to believe.
However, Cantlay, who won the PGA Tour’s FedEx Cup earlier this month for $ 15 million in prize money, won the next four holes to take control of this game.
Behind him, Scheffler made the first four holes with a birdie when he put world number one Jon Rahm under pressure early on.
And then the hard-hitting DeChambeau hit his par 4 tee first on the green and punched the 40-foot eagle putt to stun Sergio Garcia.
It was the lead the Americans would keep during their games against the Spaniards, who had scored three points from three games on Friday and Saturday in four and four.
“Unfortunately they were a bit better than us,” said Garcia, who expanded his 10th Ryder Cup point record to 28½.
“We have to accept that and we have to prepare for Rome and try to get it back.”
The victory was achieved with seven games still to play, which underlines the superiority of the home side.
Justin Thomas def.Tyrrell Hatton 4 & 3, Brooks Koepka beat Bernd Wiesberger 2 & 1, and Daniel Berger defeated Matt Fitzpatrick in the last when the US won seven of the singles games.
This could now be the start of an entire dynasty for the US, who lost seven of the previous nine editions of the Biennale competition but have now won consecutive Ryder Cups on home soil for the first time in 38 years.
The team of 12 counted eight of the top 10 in the world rankings and eight of their squad are in their twenties, with the oldest being the 37 year old world number runner-up Johnson, who rounded off a great week with a one-hole win over Paul Casey.
Three out of six rookies on the team, Cantlay, Morikawa and Schauffele, remained undefeated throughout the week as each US player contributed at least one point.
In contrast, some of the European players are nearing the end of their Ryder Cup careers, although 48-year-old Westwood, who qualified for the team, and 45-year-old Poulter, one of Harrington’s three wildcard selections, were victorious.
Both triumphs came long after losing the trophy, but both won their first holes when Europe blue was missing from the scoreboards.
Westwood, who covered two holes with five to play, eventually defeated Harris English on the 18th, while Poulter, captain pick for the fifth time in seven games, never trailed Tony Finau and won 3 & 2.
“Keeping a point on the board is nice from a personal standpoint, but it’s no consolation,” Poulter said on BBC Radio 5 Live after maintaining his good record of never losing a single game, winning six and cutting the other in half to have.
“We’ll saddle up and see if we can drive again in Italy.
“You don’t think it’s such a complete outlier. When you look at the scoreboard, it looks extremely crooked, but it didn’t feel like that.”
The next Ryder Cup is set to take place in Rome in 2023, 30 years after the USA’s last away win.