The 2003 Belterra Casino Indy 300 was Round 12 of the 2003 IndyCar Series. The event was held at Kentucky Speedway in Kentucky, United States on 17 August 2003. Sam Hornish Jr. started on pole position and was the race winner.
BELTERRA CASINO INDY 300 Race Result
| Pos. | No. | Driver | Chassis | Engine | Tire | Started | Laps | Total Time | Laps Led | Status | Points | Avg. Speed | Pit Stops |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 4 | Sam Hornish Jr. | Dallara | Chevrolet | Firestone | 1 | 200 | - | 181 | Running | 52 | 197.897 | - |
| 2 | 9 | Scott Dixon | G-Force | Toyota | Firestone | 2 | 200 | - | 0 | Running | 40 | - | - |
| 3 | 27 | Bryan Herta | Dallara | Honda | Firestone | 13 | 200 | - | 1 | Running | 35 | - | - |
| 4 | 31 | Al Unser Jr. | Dallara | Toyota | Firestone | 8 | 199 | - | 0 | Running | 32 | - | - |
| 5 | 3 | Helio Castroneves | Dallara | Toyota | Firestone | 3 | 199 | - | 5 | Running | 30 | - | - |
| 6 | 11 | Tony Kanaan | Dallara | Honda | Firestone | 11 | 199 | - | 3 | Running | 28 | - | - |
| 7 | 24 | Robbie Buhl | Dallara | Chevrolet | Firestone | 6 | 199 | - | 0 | Running | 26 | - | - |
| 8 | 26 | Dan Wheldon | Dallara | Honda | Firestone | 14 | 199 | - | 0 | Running | 24 | - | - |
| 9 | 6 | Gil de Ferran | Dallara | Toyota | Firestone | 4 | 199 | - | 0 | Running | 22 | - | - |
| 10 | 10 | Tomas Scheckter | G-Force | Toyota | Firestone | 7 | 199 | - | 0 | Running | 20 | - | - |
| 11 | 52 | Buddy Rice | Dallara | Chevrolet | Firestone | 10 | 198 | - | 0 | Running | 19 | - | - |
| 12 | 55 | Roger Yasukawa | Dallara | Honda | Firestone | 16 | 198 | - | 0 | Running | 18 | - | - |
| 13 | 8 | Scott Sharp | Dallara | Toyota | Firestone | 18 | 198 | - | 0 | Running | 17 | - | - |
| 14 | 23 | Sarah Fisher | Dallara | Chevrolet | Firestone | 9 | 198 | - | 0 | Running | 16 | - | - |
| 15 | 13 | Greg Ray | G-Force | Honda | Firestone | 5 | 197 | - | 0 | Running | 15 | - | - |
| 16 | 91 | Buddy Lazier | Dallara | Chevrolet | Firestone | 20 | 196 | - | 0 | Running | 14 | - | - |
| 17 | 14 | A.J. Foyt IV | G-Force | Toyota | Firestone | 19 | 196 | - | 0 | Running | 13 | - | - |
| 18 | 12 | Tora Takagi | Dallara | Toyota | Firestone | 12 | 196 | - | 10 | Running | 12 | - | - |
| 19 | 15 | Kenny Brack | Dallara | Honda | Firestone | 15 | 146 | - | 0 | Oil Leak | 11 | - | - |
| 20 | 21 | Alex Barron | G-Force | Toyota | Firestone | 17 | 104 | - | 0 | Engine | 10 | - | - |
| 21 | 2 | Vitor Meira | Dallara | Chevrolet | Firestone | 21 | 0 | - | 0 | DNS | 9 | - | - |