Sam Hornish, Jr. IndyCar Series results at Motegi
| Year | Race # | Start | Finish | Car # | Sponsor | Chassis | Engine | Tire | Owner | Qualifying Speed | Laps | X Led | Laps Led | Status | Money | Points |
| 2003 | 3 | 13 | 6 | 4 | Pennzoil Panther | Dallara | Chevrolet | Firestone | Panther | | 199 | 0 | 0 | running | 69300 | 28 |
| 2004 | 3 | 7 | 19 | 6 | Marlboro Team Penske | Dallara | Toyota | Firestone | Penske | 204.890 | 87 | 0 | 0 | accident | 48600 | 12 |
| 2005 | 4 | 1 | 7 | 6 | Marlboro Team Penske | Dallara | Toyota | Firestone | Penske | 204.740 | 199 | 1 | 14 | running | 75800 | 26 |
| 2006 | 3 | 4 | 4 | 6 | Marlboro Team Penske | Dallara | Honda | Firestone | Penske | | 200 | 0 | 0 | running | 91100 | 32 |
| 2007 | 3 | 5 | 5 | 6 | Team Penske | Dallara | Honda | Firestone | Penske | 203.803 | 199 | 1 | 3 | running | 89100 | 30 |
