MASON – World number one Roger Federer heads to the U.S. Open with a sixth tournament win of the year to his name, no evident fitness problems and little sign that his Olympic defeat by Andy Murray has had any adverse effect on his confidence.The Wimbledon champion came to Cincinnati aiming to fine-tuning his game ahead of Flushing Meadows and showed with his classy performances that there is not much to adjust as he looks for a record-extending 18th grand slam.The Swiss did not concede a break of serve in winning the tournament and securing his record fifth title at Cincinnati against the world number two Novak Djokovic 6-0 7-6 on Sunday."There is no doubt about it beating Novak in a final makes it extra special but then also (it was about) the reaction after losing in the Wimbledon (Olympic) final - to play a great finals after playing a not very good one at the Olympics where I went on to lose nine games in a row,” he said.Among his rivals world number three Rafa Nadal misses the U.S. Open due to a persistent knee injury and Murray pulled out of last week’s Toronto Masters event with his own knee problem and then was knocked out in the third round in Cincinnati.Djokovic won in Toronto and reached his second final in a fortnight but his 6-0 hammering in the first set on Sunday will have left something of a scar.Federer though looks in perfect condition. He seems fresh and sharp, has all areas of his game in order and is full of confidence."Even though I reached almost all goals already this year by securing a medal (at the Olympics), winning Wimbledon, and getting back to world number one, it’s important for me to push forward and give myself the best possible preparation for New York,” Federer added.Federer’s record in terms of match wins this year is also impressive - 56 victories and just seven defeats.