Hiro Matsushita CART/Champ Car results at Road America
| Year | Race # | Start | Finish | Car # | Sponsor | Chassis | Engine | Tire | Owner | Qualifying Speed | Laps | X Led | Laps Led | Status | Points |
| 1990 | 14 | 22 | 18 | 10 | Panasonic | Lola | Cosworth | Goodyear | Simon | 120.411 | 38 | 0 | 0 | engine | 0 |
| 1991 | 15 | 21 | 12 | 7 | Panasonic | Lola | Cosworth | Goodyear | Simon | 124.465 | 47 | 0 | 0 | flagged | 1 |
| 1992 | 12 | 24 | 14 | 11 | Panasonic/Sega | Lola | Chevrolet | Goodyear | Simon | 125.469 | 48 | 0 | 0 | flagged | 0 |
| 1993 | 12 | 21 | 13 | 15 | Panasonic | Lola | Ford | Goodyear | Walker | 129.199 | 48 | 0 | 0 | flagged | 0 |
| 1994 | 14 | 27 | 14 | 22 | Panasonic-Duskin | Lola | Ford | Goodyear | Simon | 129.123 | 49 | 0 | 0 | flagged | 0 |
| 1995 | 10 | 26 | 13 | 25 | Panasonic/Duskin/Arciero | Reynard | Ford | Firestone | Arciero | 136.144 | 50 | 0 | 0 | flagged | 0 |
| 1996 | 14 | 26 | 15 | 19 | Panasonic-Duskin | Lola | Ford | Firestone | Coyne | 132.104 | 45 | 0 | 0 | transmission | 0 |
| 1997 | 14 | 27 | 24 | 24 | Panasonic-Duskin | Reynard | Toyota | Firestone | Arciero | 129.536 | 19 | 0 | 0 | contact | 0 |
