A strong contingent of young guns with major titles to their credit helped the United States overpower Europe to grab a 5 and 3 lead on the opening day of the 39th Ryder Cup on Friday.
Bubba Watson, Keegan Bradley and Webb Simpson all recorded victories in Friday's fourballs at the Medinah Country Club course.
Reigning US Open champ Simpson and 2011 PGA Championship winner Bradley are competing in their first Ryder Cups while 2012 Masters winner Watson is in his second.
"Everybody kept calling them rookies but they are proven Tour winners and guys that have played very, very well lately," said US skipper Davis Love. "So we aren't considering them rookies except in the Ryder Cup. We showed a little nerves this morning right out of the box but I am proud of the whole team. They stuck together well."
The Americans dominated the afternoon fourballs, winning three points against the Europeans.
Watson and Simpson scored a crushing 5 and 4 win over Paul Lawrie and Peter Hanson in their afternoon match.
"This was my first Ryder Cup and I was scared to death," Simpson said.
The 34-year-old Watson said he enjoys playing with Simpson because they know each other so well on and off the course.
"Just playing with a buddy can keep me cool," Watson said. "I know he is going to play really good. I just needed to be there when he was what we call struggling, making pars, so it was fun."
Watson said today means more to him because his only other Ryder Cup in 2010 was the last time his father saw him play before he died from cancer.
"Since my dad has been gone I've played some good golf. I've won a major, got a son and now I am in the Ryder Cup again," Watson said. "What this means to me and the United States flag and my dad not being here, it is just wild."
Bradley and Phil Mickelson stormed out to an early lead then held on to defeat Rory McIlroy and Graeme McDowell 2 and 1 in afternoon fourball.
The American duo didn't skip a beat between the morning and afternoon sessions, beating McIlroy and McDowell after coming off a rousing 4 and 3 victory in the foursomes over Luke Donald and Sergio Garcia.
Bradley said his Ryder Cup debut was everything he hoped for. He was the most animated of the US players Friday, celebrating birdies with double fist pumps and even a chest bump with his new favourite golfing buddy Mickelson.
"I had such a great day, it was one of the best days of my life," Bradley said. "It was so much fun and to do it alongside Phil Mickelson, one of my idols, makes it even more special."
The 27-year-old Simpson said he and Watson fed off the energy they saw from Bradley.
"Seeing him get so excited this morning when Bubba and I were eating lunch getting ready for our round gets us that much more pumped up.
"I was sitting there yawning and I see his energy and it got me fired up."
Simpson came from four back in the final round to win the 2012 US Open in only the fifth major of his career.
Poor putting from the European pair of Lawrie and Hanson allowed the Americans to win the first two holes. When Simpson sunk an 18-footer for birdie at the fourth they were already on the way at three up.
Simpson said he felt a different kind of pressure Friday than he did when he won his US Open.
"The pressure in the US Open was all the same pressure you feel in a regular event, just a little bit more," Simpson said. "When you feel guys pulling for you, it makes you want to play well that much more.
"Today is my first Ryder Cup day so I enjoyed the nerves on the first tee.
"For us to come together one week a year and play as a team, when every other week we are trying to beat each other, is pretty special."