| Details | |
|---|---|
| Duration | March 5 – November 2 |
| Edition | 14th |
| Tournaments | 9 |
| Achievements (singles) | |
| Most tournament titles |  Juan Carlos Ferrero  Andy Roddick (2) |
| Most tournament finals |  Guillermo Coria Juan Carlos Ferrero Andy Roddick (2) |
← 2002 2004 → | |
The table below shows the 2003 Tennis Masters Series schedule.
The ATP Masters Series are part of the elite tour for professional men's tennis organised by the Association of Tennis Professionals.