USA (3) 15
Tries: Tuilevuka, Gagiani Cons: DeBartalo Pens: DeBartalo
Wales (27) 48
Tries: M Jones, J Davies 2, Pen try, James, Cooper Cons: Robinson 3, James, Biggar Pens: Robinson 2
Jonathan Davies scores the first of his two tries
Wales ran home six tries as they ended their tour of North America with a comfortable win against the United States in Chicago.
Gloucester-bound Nicky Robinson marked his return to international rugby after a three year absence by scoring 12 points with his boot.
Mark Jones, Jonathan Davies (two), Tom James, Gareth Cooper all got across the try-line, along with a penalty try.
The US scored two tries through Alipate Tuilevuka and JJ Gagiani.
Wales could have marked their 600th game with a more comfortable win had they not been guilty of making needless errors.
Robinson kicked twice in a minute to give the tourists an early 6-0 lead after the United States were first caught offside and then penalised for failing to release.
That lead was halved on 13 minutes with Gavin DeBartalo sending a huge kick from the left between the posts.
But just two minutes later, Wales grabbed their first try when their forwards spread the ball quickly across for Mark Jones to cross in the corner, his first international try since 2007.
Robinson converted to make it 13-3 and it did not take long to reach the 20 point mark when he popped the ball over to second-cap Jonathan Davies to race through and over.
It was not all plain sailing though. Before the second try, Wales lost captain Ryan Jones after he failed to recover from a first minute challenge by Eagles prop Will Johnson.
Cardiff Blues' Sam Warburton won his first cap as Jones replacement before openside flanker Robin-Sowden Taylor was the next casualty with a hamstring injury.
It did not hamper their cause as an already uphill task for the United States was made even tougher when Louis Stanfill was yellow-carded seven minutes before the break for pulling down the maul.
Captain Ryan Jones is treated after the first minute challenge
And it was not long before the lead was extended to a 27-3 half-time lead after a penalty try was awarded.
The US made a strong start to the second half and got their first try 13 minutes in when Alipate Tuilevuka burst through with DeBartalo converting.
Wales were guilty of making needless mistakes which helped keep the US in the hunt.
But they grabbed the fourth try just after the hour when Cardiff Blues' Tom James booted a loose ball which low down the line and he ran unopposed to touch the ball down. Robinson converted to make it 34-10.
In the closing stages Gareth Cooper added a fifth try from Dan Biggar's punt and it was Biggar who took the score past the 40-point mark with the conversion.
Davies added his second late on with Biggar converting before JJ Gagiani got a second for the hosts at the death.
USA: Wyles, DeBartalo, Tuilevuka, Suniula, Swiryn, Malifa, Petri, Moeakiola, Biller, W. Johnson, van der Giessen, Smith, Stanfill, Dahl, N. Johnson.
Replacements: McClanahan, MacDonald, Mackay, Gagiani, Usasz, Hercus, Sifa.
Wales: Evans, M. Jones, Davies, Bishop, T. James, Robinson, Peel, Duncan Jones, Williams, J Yapp, Deiniol Jones, Gough, Dafydd Jones, Sowden-Taylor, R. Jones.
Replacements: Hibbard, Mitchell, Charteris, Warburton, Cooper, Biggar, Spratt.
Ref: Matt Goddard (Australia).