 Federer won one ATP 500 series event in Tokyo and captured the year @-@ end championships for the third time in his career , again finishing the year as world No. 1 . Federer only lost to two players during 2006 , to Nadal four times in finals , and to 19 @-@ year @-@ old Andy Murray in the second round of the 2006 Cincinnati Masters , in what would be Federer 's only defeat before the final that year . Federer finished the season on a 29 @-@ match winning streak , as well as winning 48 of his last 49 matches after the French Open . 
