 He finished as the year @-@ end world No. 1 for the fourth year in a row , demonstrating his dominance , and during these four years he won 11 Grand Slam singles titles . After his phenomenal triple Grand Slam season yet again , Federer became the only player in history to win three Majors in a year for three years ( 2004 , 2006 , 2007 ) . It was the third consecutive season that Federer would hold the world No. 1 ranking for all 52 weeks of the year . 
