The 2003 Pikes Peak 100 was Round 4 of the 2003 IRL Infiniti Pro Series. The event was held at Pikes Peak International Raceway in Colorado, United States on 14 June 2003. Aaron Fike was the race winner.
Pikes Peak 100 Race Result
| Pos. | No. | Driver | Chassis | Engine | Tire | Laps | Laps Led | Status | Started | Points |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 91 | Aaron Fike | Dallara | Infiniti | Firestone | 87 | 82 | Running | 3 | 52 |
| 2 | 20 | Jeff Simmons | Dallara | Infiniti | Firestone | 87 | 3 | Running | 1 | 40 |
| 3 | 5 | Arie Luyendyk Jr. | Dallara | Infiniti | Firestone | 87 | 0 | Running | 11 | 35 |
| 4 | 14 | Ed Carpenter | Dallara | Infiniti | Firestone | 87 | 0 | Running | 4 | 32 |
| 5 | 4 | Mark Taylor | Dallara | Infiniti | Firestone | 87 | 0 | Running | 6 | 30 |
| 6 | 36 | Thiago Medeiros | Dallara | Infiniti | Firestone | 87 | 0 | Running | 9 | 28 |
| 7 | 3 | Jonathan Urlin | Dallara | Infiniti | Firestone | 87 | 0 | Running | 8 | 26 |
| 8 | 27 | Gary Peterson | Dallara | Infiniti | Firestone | 86 | 0 | Running | 10 | 24 |
| 9 | 12 | Matt Beardsley | Dallara | Infiniti | Firestone | 86 | 0 | Running | 5 | 22 |
| DNF | 9 | Tom Wood | Dallara | Infiniti | Firestone | 64 | 0 | Engine | 7 | 20 |
| DNF | 99 | Brandon Erwin | Dallara | Infiniti | Firestone | 9 | 0 | Electrical | 12 | 19 |
| DNF | 92 | Cory Witherill | Dallara | Infiniti | Firestone | 6 | 2 | Accident | 2 | 18 |
| DNF | 24 | Paul Dana | Dallara | Infiniti | Firestone | 0 | 0 | Did Not Start | 13 | 17 |