2003 ATP Tour
| Andy Roddick finished the year ranked world No. 1 for the first time in his career. He won six tournaments during the season, including a major title at the US Open. He also won two Masters Series events. | |
| Details | |
|---|---|
| Duration | 28 December 2002 – 8 November 2003 | 
| Edition | 34th | 
| Tournaments | 68 | 
| Achievements (singles) | |
| Most titles | Roger Federer (7) | 
| Most finals | Roger Federer (9) | 
| Prize money leader | Roger Federer ($4,000,680) | 
| Points leader | Andy Roddick (4,535) | 
| Awards | |
| Player of the year | Andy Roddick | 
| Doubles team of the year | Bob Bryan Mike Bryan | 
| Most improved player of the year | Rainer Schüttler | 
| Newcomer of the year | Rafael Nadal | 
| Comeback player of the year | Mark Philippoussis | 
| ← 2002  2004 →  | |
The 2003 ATP Tour was the global elite men's professional tennis circuit organised by the Association of Tennis Professionals (ATP) for the 2003 tennis season. The ATP Tour is the elite tour for professional tennis organised by the ATP. The ATP Tour includes the four Grand Slam tournaments, the Tennis Masters Cup, the ATP Masters Series, the International Series Gold and the International Series tournaments.