Sam Hornish, Jr. IndyCar Series results at Chicagoland
| Year | Race # | Start | Finish | Car # | Sponsor | Chassis | Engine | Tire | Owner | Qualifying Speed | Laps | X Led | Laps Led | Status | Money | Points |
| 2001 | 12 | 8 | 2 | 4 | Pennzoil Panther Dallara | Dallara | Oldsmobile | Firestone | Panther | 217.900 | 200 | 1 | 13 | running | 107550 | 40 |
| 2002 | 14 | 1 | 1 | 4 | Pennzoil Panther Dallara | Dallara | Chevrolet | Firestone | Panther | 222.867 | 200 | 9 | 102 | running | 126600 | 52 |
| 2003 | 14 | 8 | 1 | 4 | Pennzoil Panther | Dallara | Chevrolet | Firestone | Panther | 221.265 | 200 | 5 | 40 | running | 113400 | 50 |
| 2004 | 14 | 7 | 6 | 6 | Marlboro Team Penske | Dallara | Toyota | Firestone | Penske | 212.991 | 200 | 0 | 0 | running | 45700 | 28 |
| 2005 | 15 | 4 | 3 | 6 | Marlboro Team Penske | Dallara | Toyota | Firestone | Penske | 215.717 | 200 | 0 | 0 | running | 67150 | 35 |
| 2006 | 14 | 1 | 3 | 6 | Marlboro Team Penske | Dallara | Honda | Firestone | Penske | 215.319 | 200 | 3 | 8 | running | 88750 | 35 |
| 2007 | 17 | 2 | 3 | 6 | Team Penske | Dallara | Honda | Firestone | Penske | 214.492 | 199 | 3 | 90 | running | 69850 | 38 |
