2003 Gran Premio Foster's di San Marino
| Date | 20.04.2003 | Category | Formula 1 |
| Circuit | Autodromo Enzo e Dino Ferrari | Championship | Formula 1 World Championship |
| Race title | 23o Gran Premio Foster's di San Marino | Round | 4 |
| Distance | 62 laps = 305.609 km | Country | Italy |
Winner's speed: 207.894 kmh
Pole's speed: 215.710 kmh
Fastest lap speed: 215.281 kmh
| Rank | Pos. | # | Driver | Entrant | Car | Laps | Laps lead | Time | Status | Pts | FL time | FL rank | Grid | Row | Qual time |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 1 | 1 | Michael Schumacher | Scuderia Ferrari Marlboro | Ferrari F2002 3.0 V10 | 62 | 42 | 1:28'12.058 | finished | 10 | 1'22.491 | 1 | 1 | 1 | 1'22.327 |
| 4 | 4 | 4 | Ralf Schumacher | BMW WilliamsF1 Team | Williams FW25 BMW 3.0 V10 | 62 | 15 | 1:28'20.861 | finished | 5 | 1'23.265 | 6 | 2 | 1 | 1'22.341 |