Rick Mears 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 |
| 1984 | 5 | 6 | 10 | 6 | Pennzoil Z-7 | March | Cosworth | Goodyear | Penske | 114.269 | 99 | 1 | 1 | flagged | 3 |
| 1986 | 5 | 9 | 16 | 1 | Pennzoil Z-7 | March | Cosworth | Goodyear | Penske | 90.940 | 34 | 0 | 0 | gearbox | 0 |
| 1987 | 5 | 9 | 3 | 8 | Pennzoil Z-7 | Penske | Chevrolet | Goodyear | Penske | 113.732 | 102 | 0 | 0 | flagged | 14 |
| 1988 | 5 | 3 | 6 | 5 | Pennzoil | Penske | Chevrolet | Goodyear | Penske | 117.170 | 103 | 0 | 0 | flagged | 8 |
| 1989 | 6 | 6 | 8 | 4 | Pennzoil | Penske | Chevrolet | Goodyear | Penske | 119.196 | 98 | 1 | 25 | flagged | 5 |
| 1990 | 6 | 6 | 5 | 2 | Pennzoil Z-7 | Penske | Chevrolet | Goodyear | Penske | 120.246 | 104 | 0 | 0 | flagged | 10 |
| 1991 | 7 | 2 | 6 | 3 | Marlboro | Penske | Chevrolet | Goodyear | Penske | 122.242 | 103 | 0 | 0 | out of fuel | 8 |
| 1992 | 6 | 7 | 7 | 4 | Marlboro | Penske | Chevrolet | Goodyear | Penske | 112.286 | 100 | 0 | 0 | flagged | 6 |
