Andy Roddick blew past Sebastien Grosjean on Sunday to win the Stella Artois Championship and announce himself as a major contender for the Wimbledon crown.

The American 20-year-old took just an hour to obliterate the Frenchman 6-3 6-3 for his seventh career title and his first on grass.

Roddick, who had equalled Greg Rusedski's world record 149mph serve during his epic semi-final victory over Andre Agassi, troubled the speed gun again and gave Grosjean just one break point opportunity through the entire match.

He hammered down consecutive 146mph and 147mph efforts and even clocked one at 154mph - though sadly it rocketed into the net.

Roddick said: "I came here not knowing really where I was and with a lot of changes but titles come when you least expect them.

"I feel now that I will go into Wimbledon better prepared than I have been and more confident.

"But you have to guard against over-confidence because I was also confident going into the French Open."

Grosjean had played superbly in disposing of reigning champion Lleyton Hewitt and Tim Henman to reach the final but he never got to grips with the Roddick serve.

Roddick seized control of the match from the outset and broke Grosjean in the sixth game of the first set when the Frenchman double-faulted on Roddick's third break point.

Grosjean's own solitary break point chance came before Roddick managed to serve out for the set at 6-3.

When the American broke again in the third game of the second set the contest was effectively over. He converted his second match point with a fortunate net cord but luck was the last thing he needed.

Grosjean, who had already proved his pedigree on grass by winning at Nottingham three years ago, said he would also go to Wimbledon confident following an encouraging week.

He said: "I didn't return well and Andy took his chances on my serve.

"But it has been a good week for me and I have beaten Lleyton and Tim so I'm happy with the way I played. I have no regrets."

Despite his recent shock Roland Garros defeat Roddick is in super form and if he can use this week's win over Greg Rusedski as a benchmark alongside his straight sets All England Club defeat to the Briton last year then he must stand a chance of going all the way.

He has relished his first week with his new coach Brad Gilbert and expects to make a number of minor adjustments to be in peak condition for Wimbledon.

Roddick added: "I have week now before Wimbledon starts to take it easy and then I'll get revved up and ready to go again.

"I'm returning serve much better at the moment and everything went my way today. If I can take this form into Wimbledon then I'll be happy."