Scotland's Catriona Matthew made history as she secured the half Europe needed to win the Solheim Cup on American soil for the first time.
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On a dramatic final day in Colorado, play was suspended for an hour with Europe just one point away from retaining the trophy because of the threat of lightning.
When play resumed, Sweden's Caroline Hedwall sank a birdie putt on the 18th to secure a one-up victory against Michelle Wie which put Europe 14-7 ahead, ensuring they kept the trophy they won in Ireland in 2011.
And moments later Matthew claimed a half in her match against Gerina Piller to ensure they won the cup outright.
"I was shaking. My knees were shaking. I knew if I got a half we would win it outright," Matthew, who won the Open in 2009, told Sky Sports 1
"It beats that. Any time you can celebrate with your 11 team-mates it makes it more exciting, more fun."
It was 17-year-old Charley Hull - one of six rookies on an unfancied European team - who got the ball rolling on a final day they went into leading 10.5-5.5 after a clean sweep in the Saturday fourballs.
Hull lost the second hole to Paula Creamer, but hit back to lead by three at the turn after a sparkling display, and she never let the advantage slip before securing a 5&4 win for the first of the four points needed.
Hull told Sky Sports 1: It's amazing, especially in America, the first time ever.
"It's been fantastic, so many nice people on the team. They're not as scary as they look on TV.
"It's awesome. I'm loving life."
Europe edged closer when Anna Nordqvist drained a birdie putt on 17 - the hole where yesterday she achieved the Solheim Cup's first ever ace - to take a half from her match with Stacy Lewis.
Carlota Ciganda then completed a comfortable 4&2 victory over Morgan Pressel, giving her a third point in three games this weekend, before Brittany Lang got America's first win of the day on the board against another Spaniard, Azahara Munoz.
The horn sounded soon after to take the players off course, but there was no let-up from the women in blue once they came back out.
Hedwall's defeat of Wie sealed the crucial point, but it was doubly historic as the Swede became the first player ever to win all five of her games in a single Solheim Cup.
"I don't know what to say," she told Sky Sports 1. "I'm shaking. It's unbelievable.
"This is what you practise for to be part of this moment. It's unbelievable."
Suzann Pettersen's match with Lizette Salas finished all square, as did Jessica Korda v Giulia Sergas, while Lexi Thompson got some rare red on the board with a 4&3 win over Caroline Masson.
Jodi Ewart Shadoff, another of Europe's impressive rookies, was a 3&2 winner over Brittany Lincicome.
"I can't even put it into words. This is absolutely unreal," Yorkshire's Ewart Shadoff told Sky Sports 1.
"The sort of pressure you feel this week, you can't really compare it to anything."
Beatriz Recari beat Angela Stanford 2&1, and when Karine Icher shook hands with Cristie Kerr for half a point apiece in the final match more than an hour after the contest had been decided, Europe's winning margin was confirmed as 18-10.