The 2003 FIA Sportscar Championship Monza was the third race for the 2003 FIA Sportscar Championship season held at Autodromo Nazionale Monza and ran for 500 kilometers. It took place on June 29, 2003.[1]
Class winners in bold. Cars failing to complete 75% of winner's distance marked as Not Classified (NC).
| Pos | Class | No | Team | Drivers | Chassis | Tyre | Laps |
|---|---|---|---|---|---|---|---|
| Engine | |||||||
| 1 | SR1 | 1 |  Racing for Holland | Jan Lammers John Bosch | Dome S101 | 84 | |
| Judd GV4 4.0L V10 | |||||||
| 2 | SR1 | 21 |  Team Ascari |  Werner Lupberger Klaas Zwart Charles Hall | Ascari KZR-1 | 84 | |
| Judd GV4 4.0L V10 | |||||||
| 3 | SR1 | 6 | Taurus Sports Racing | Phil Andrews Christian Vann | Lola B2K/10 | 84 | |
| Judd GV4 4.0L V10 | |||||||
| 4 | SR1 | 22 |  R&M | Mauro Baldi Filippo Francioni Ezio Mazza | R&M SP01 | 81 | |
| Judd GV4 4.0L V10 | |||||||
| 5 | SR1 | 11 | Earl Goddard | Earl Goddard Steve Arnold | Reynard 01Q | 80 | |
| Ford Cosworth 3.4L V8 | |||||||
| 6 | SR2 | 61 | Team Jota | John Stack Sam Hignett | Pilbeam MP84 | 78 | |
| Nissan (AER) VQL 3.0L V6 | |||||||
| 7 | SR2 | 54 | Ranieri Randaccio | Ranieri Randaccio Jacepo Sebastiani | Lucchini SR2000 | 54 | |
| Alfa Romeo 3.0L V6 | |||||||
| DNF | SR1 | 16 |  Pescarolo Sport | Jean-Christophe Boullion Franck Lagorce | Courage C60 | 49 | |
| Peugeot A32 3.2L Turbo V6 | |||||||
| DNF | SR2 | 52 | Lucchini Engineering | Mirko Savoldi Piergiuseppe Peroni | Lucchini SR2002 | 47 | |
| Nissan (AER) VQL 3.0L V6 | |||||||
| DNF | SR1 | 2 | Racing for Holland | Beppe Gabbiani Felipe Ortiz | Dome S101 | 37 | |
| Judd GV4 4.0L V10 | |||||||
| DNF | SR1 | 3 |  GLV Brums | Xavier Pompidou Giovanni Lavaggi | Ferrari 333 SP | 32 | |
| Judd GV4 4.0L V10 | |||||||
| DNF | SR1 | 8 | Automotive Durango SRL | Leonardo Maddalena Michele Rugolo Fulvio Cavicchi | Durango LMP1 | 27 | |
| Judd GV4 4.0L V10 | |||||||
| DNF | SR2 | 55 | GP Racing | Fabio Mancini Gianni Collini Massimo Saccomanno | Lucchini SR2001 | 22 | |
| Alfa Romeo 3.0L V6 | |||||||
| DNF | SR1 | 12 | Gianfranco Trombetti | Alex Caffi Gianfranco Trombetti | Promec PJ119 | 20 | |
| Peugeot A32 3.2L Turbo V6 | |||||||
| DNF | SR2 | 99 | PiR Bruneau | Pierre Bruneau Marc Rostan | Pilbeam MP84 | 13 | |
| Nissan (AER) VQL 3.0L V6 |