World number one Roger Federer solidified his top position by crushing former champion Lleyton Hewitt 6-0, 7-6, 6-0 as the Swiss claimed his first U.S. Open title on Sunday.

Roger Federer (R) of Switzerland holds up his trophy after defeating Lleyton Hewitt of Australia in the men's final match of the 2004 US Open in New York, September 12, 2004. Federer won the match 6-0, 7-6, 6-0.

Federer raced through the first set in 18 minutes, and although Australian fourth seed Hewitt forced a tiebreak in the second, he stormed through the third to win his first four Grand Slam finals.

The Australian Open and Wimbledon champion is also the first player since Sweden's Mats Wilander in 1988 to win three grand slams in the same year.

In his first U.S. Open final, Federer, was simply breathtaking as he lost only five points on his way to the opener against a player who had cruised through to the final without dropping a set.

The 2001 champion Hewitt again lost his opening serve in the second set, but he finally registered on the scoreboard after 30 minutes of one-way traffic.

He then reached 30-40 on Federer's serve in the sixth game but the 23-year-old Swiss blasted three aces to win the game.

Hewitt saved three break points, battling back from 0-40 down in the next game before he had another break point in the next game but was frustrated when, after running the top seed all over the court, his attempted backhand winner flicked the net and landed in the tramlines.

Hewitt's efforts were rewarded in a marathon 10th game when he saved three set points before snatching back a break to level the set at 5-5 when Federer missed a backhand.

With Federer showing the first signs of pressure, the tiebreak became the pivotal point of the match as Hewitt missed his winning chance with a backhand limped into the net.

As in the first set, Federer raised his level again in the third, racing into a 5-0 lead before a forehand winner down the line clinched the fourth grand slam title of his career.