Federer had one of the most dominating and successful years in the open era of modern men's tennis. He won three of the four Grand Slam singles tournaments, did not lose a match to anyone ranked in the top ten, won every final he reached, and was named the ITF Tennis World Champion. His win–loss record for the year was 74–6 with 11 titles.
Federer won his first Australian Open singles title by defeating Marat Safin in the final in straight sets. This win helped him succeed Andy Roddick as the World No. 1, a ranking he would hold for four years until August 18, 2008. He successfully defended his Wimbledon singles title by defeating Roddick in the final and won his first US Open singles title by defeating Lleyton Hewitt in the final. Federer was the top-seeded player at the Athens Olympics but lost in the second round to Tomá¨ Berdych 4–6, 7–5, 7–5. Federer finished the year by taking the Tennis Masters Cup in Houston for the second consecutive year, defeating Hewitt in the final. Federer's only loss at a Grand Slam tournament was at the French Open, where he lost to former World No. 1 and 3-time French Open champion Gustavo Kuerten in straight sets.
Federer did not have a coach during 2004, relying instead on his fitness trainer Pierre Paganini, physiotherapist Pavel Kovac, and a management team composed of his parents, his girlfriend and manager Mirka Vavrinec, and a few friends