In 2003 , Federer won his first Grand Slam single title at Wimbledon , beating Mark Philippoussis in the final . Federer won his first and only double Masters Series 1000 event in Miami with Max Mirnyi and made it to one single Masters Series 1000 event in Rome on clay , which he lost . Federer made it to nine finals on the ATP Tour and won seven of them , including the 500 series events at Dubai and Vienna . Lastly , Federer won the year @-@ end championships over Andre Agassi , finishing the year as world No. 2 , narrowly behind Andy Roddick .