The 2003 Firestone Indy 400 was Round 10 of the 2003 IndyCar Series. The event was held at Michigan International Speedway in Michigan, United States on 27 July 2003. Tomas Scheckter started on pole position and Alex Barron was the race winner.
TOYOTA INDY 300 Race Result
| Pos. | No. | Driver | Chassis | Engine | Tire | Started | Laps | Total Time | Laps Led | Status | Points | Avg. Speed | Pit Stops |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 9 | Scott Dixon | G-Force | Toyota | Firestone | 12 | 200 | - | 53 | Running | 50 | 153.71 | - |
| 2 | 6 | Gil de Ferran | Dallara | Toyota | Firestone | 5 | 200 | - | 92 | Running | 42 | - | - |
| 3 | 3 | Helio Castroneves | Dallara | Toyota | Firestone | 4 | 200 | - | 5 | Running | 35 | - | - |
| 4 | 11 | Tony Kanaan | Dallara | Honda | Firestone | 1 | 200 | - | 36 | Running | 32 | - | - |
| 5 | 8 | Scott Sharp | Dallara | Toyota | Firestone | 6 | 200 | - | 0 | Running | 30 | - | - |
| 6 | 7 | Michael Andretti | Dallara | Honda | Firestone | 2 | 200 | - | 13 | Running | 28 | - | - |
| 7 | 27 | Dario Franchitti | Dallara | Honda | Firestone | 7 | 200 | - | 0 | Running | 26 | - | - |
| 8 | 10 | Tomas Scheckter | G-Force | Toyota | Firestone | 9 | 200 | - | 0 | Running | 24 | - | - |
| 9 | 21 | Felipe Giaffone | G-Force | Toyota | Firestone | 15 | 199 | - | 0 | Running | 22 | - | - |
| 10 | 4 | Sam Hornish Jr. | Dallara | Chevrolet | Firestone | 3 | 199 | - | 0 | Running | 20 | - | - |
| 11 | 15 | Kenny Brack | Dallara | Honda | Firestone | 8 | 198 | - | 1 | Running | 19 | - | - |
| 12 | 12 | Tora Takagi | G-Force | Toyota | Firestone | 14 | 198 | - | 0 | Running | 18 | - | - |
| 13 | 31 | Al Unser Jr. | Dallara | Toyota | Firestone | 11 | 198 | - | 0 | Running | 17 | - | - |
| 14 | 55 | Roger Yasukawa | Dallara | Honda | Firestone | 10 | 198 | - | 0 | Running | 16 | - | - |
| 15 | 23 | Sarah Fisher | Dallara | Chevrolet | Firestone | 13 | 196 | - | 0 | Running | 15 | - | - |
| 16 | 52 | Buddy Rice | Dallara | Chevrolet | Firestone | 16 | 195 | - | 0 | Running | 14 | - | - |
| 17 | 14 | A.J. Foyt IV | Dallara | Toyota | Firestone | 17 | 194 | - | 0 | Running | 13 | - | - |
| 18 | 5 | Shigeaki Hattori | G-Force | Toyota | Firestone | 20 | 181 | - | 0 | Running | 12 | - | - |
| 19 | 24 | Robbie Buhl | Dallara | Chevrolet | Firestone | 19 | 142 | - | 0 | Accident | 11 | - | - |
| 20 | 2 | Jaques Lazier | Dallara | Chevrolet | Firestone | 18 | 85 | - | 0 | Accident | 10 | - | - |
| 21 | 18 | Scott Mayer | Dallara | Chevrolet | Firestone | 21 | 2 | - | 0 | Accident | 9 | - | - |