Andy Murray enjoyed silencing Dustin Brown's noisy fans as he charged into the third round of the US Open.

Murray needed just 85 minutes to seal a 7-5 6-3 6-0 victory on Arthur Ashe Stadium, shrugging off a brief rain delay to advance to the last 32 for the fifth year in succession.

The flamboyant Brown delighted his enthusiastic band of supporters with some extravagant hitting early on, but once Murray got to grips with the 25-year-old's serve the result was never in doubt.

"I'd never played him before so at the start of the match it was very interesting," Murray said.

"He went for his shots huge and was hitting fun shots so I was glad to get off in straight sets.

"I kind of knew what to expect coming into the match. I've been told he likes to put on a bit of a show beforehand.

"The crowd obviously enjoy watching that but it went from being a great atmosphere at the end of the first set to just pretty quiet because there wasn't a whole lot going on out there.

"I started well, I didn't really give him many chances. I've not really ever seen him play before. He has a very fast service action, so it took a few games to start to read the serve a little bit.

"I just had to focus on playing solid and making as many returns as possible. When you play as high-risk tennis as that, it's difficult over five sets to keep it up."

Murray had just held serve to lead 2-1 in the opening set when play was suspended due to light rain, although tournament referee Brian Earley told the players: "I'm going to send you in, but stay fairly close."

Rain had been forecast due to Hurricane Earl sweeping up the east coast of the United States, although it had been downgraded from a category four to category one storm.

In the six minutes play possible, Murray had already lost two of his three available challenges on debatable line calls, the fourth seed querying Brown's first two serves but seeing them both confirmed as aces.

Play resumed after a delay of around 25 minutes and Brown continued to produce some thumping serves and forehands, but the world number 123 was unable to put any pressure on the Murray serve and the Scot gained the decisive break in the 12th game of the set.

Two superb forehand winners were whipped past Brown as he charged into the net to set up two set points, and although Brown saved the first with an ace - Murray looked like he wanted to challenge but had already lost all three - Murray forced his opponent to net a forehand to take the set 7-5.

Murray had to ask the umpire to ensure he was ready to play before Brown served, but it was the Scot who looked in a hurry to get the match finished.

The 23-year-old raced into a 5-0 lead in the second set with two breaks of serve, with Brown having no answer to Murray's more complete all-around game.

Brown held serve to avoid a whitewash - maintaining his habit of serving with the same 'lucky' ball after winning a point - and then broke back with the aid of two crunching forehand returns.

Another successful hold reduced the deficit to 5-3, but Murray made no mistake at the second time of asking, serving out to love to take the set 6-3 and place one foot in the third round.

That effectively killed the match as a contest and Murray raced through the third set with three breaks of serve to set up a clash with Stanislas Wawrinka, a player he holds a 5-3 career record against including victories at Wimbledon last year and here in 2008 on his way to the final.

Brown, who used to travel around Europe in a camper van to play low-key tournaments, said: "In the beginning I thought I was staying with him and he came up with a really good game breaking me at 5-6.

"It's not bad losing to Andy Murray. I'm definitely not upset, that's why it was a good first set. The other two sets he started getting more comfortable and definitely returning really well.

"I only know him from watching him on TV. I wasn't worrying about him too much, I just tried to play my game and make sure that I'm doing the things I'm supposed to do.

"I wasn't trying to go out there and worrying too much about the opponent. If you do that, then you're just going to go nuts out there. I lost 5, 3, and 0. It happens."