Hiro Matsushita CART/Champ Car results at Portland
| Year | Race # | Start | Finish | Car # | Sponsor | Chassis | Engine | Tire | Owner | Qualifying Speed | Laps | X Led | Laps Led | Status | Points |
| 1990 | 6 | 20 | 12 | 10 | Panasonic | Lola | Cosworth | Goodyear | Simon | 115.008 | 97 | 0 | 0 | flagged | 1 |
| 1991 | 7 | 18 | 14 | 7 | Panasonic | Lola | Cosworth | Goodyear | Simon | 115.729 | 99 | 0 | 0 | flagged | 0 |
| 1993 | 7 | 20 | 21 | 15 | Panasonic | Lola | Ford | Goodyear | Walker | 110.514 | 87 | 0 | 0 | contact | 0 |
| 1994 | 7 | 30 | 21 | 22 | Panasonic-Duskin | Lola | Ford | Goodyear | Simon | 110.317 | 97 | 0 | 0 | flagged | 0 |
| 1995 | 9 | 24 | 17 | 25 | Panasonic/Duskin/Arciero | Reynard | Ford | Firestone | Arciero | 112.270 | 96 | 0 | 0 | flagged | 0 |
| 1996 | 9 | 26 | 21 | 19 | Panasonic-Duskin | Lola | Ford | Firestone | Coyne | 112.596 | 64 | 0 | 0 | engine | 0 |
| 1997 | 9 | 27 | 15 | 24 | Panasonic-Duskin | Reynard | Toyota | Firestone | Arciero | 112.925 | 77 | 0 | 0 | flagged | 0 |
