Truesports CART/Champ Car statistics at Portland
| Year | Race # | Driver | Start | Finish | Car # | Sponsor | Chassis | Engine | Tire | Qualifying Speed | Laps | X Led | Laps Led | Status | Points |
| 1984 | 5 | Bobby Rahal | 8 | 14 | 5 | 7-Eleven/Red Roof Inns | March | Cosworth | Goodyear | 113.659 | 79 | 1 | 3 | gearbox | 0 |
| 1985 | 4 | Bobby Rahal | 3 | 20 | 3 | Budweiser | March | Cosworth | Goodyear | 114.910 | 54 | 1 | 21 | oil leak | 0 |
| 1986 | 5 | Bobby Rahal | 8 | 20 | 3 | Budweiser-TrueSport | March | Cosworth | Goodyear | 91.397 | 7 | 0 | 0 | oil leak | 0 |
| 1987 | 5 | Bobby Rahal | 3 | 1 | 1 | Budweiser/Truesport | Lola | Cosworth | Goodyear | 115.813 | 104 | 2 | 56 | flagged | 21 |
| 1988 | 5 | Bobby Rahal | 6 | 12 | 1 | Budweiser TrueSports | Lola | Judd | Goodyear | 116.020 | 101 | 0 | 0 | flagged | 1 |
| 1989 | 6 | Scott Pruett | 11 | 5 | 3 | Budweiser | Lola | Judd | Goodyear | 117.806 | 103 | 0 | 0 | flagged | 10 |
| 1990 | 6 | Raul Boesel | 12 | 18 | 8 | Budweiser | Lola | Judd | Goodyear | 118.419 | 77 | 0 | 0 | engine | 0 |
| 1991 | 7 | Scott Pruett | 3 | 8 | 11 | Budweiser | TrueSport | Judd | Goodyear | 121.089 | 103 | 0 | 0 | flagged | 5 |
| 1992 | 6 | Scott Pruett | 10 | 10 | 10 | Budweiser | TrueSport | Chevrolet | Goodyear | 111.086 | 99 | 0 | 0 | flagged | 3 |
