2005 Portland - Positions gained/lost
Track Portland
City Portland, Oregon
Type Roadcourse
Length 1.959 mi
Trackrecord 0:57.214
| P | Driver | Nat | Start | Finish | +/- |
|---|---|---|---|---|---|
| 1 | Cristiano da Matta PKV Racing |  | 10 | 1 | +9 |
| 2 | Nelson Philippe Conquest Racing |  | 17 | 12 | +5 |
| 3 | Michael Valiante Dale Coyne |  | 15 | 11 | +4 |
| 4 | Marcus Marshall Team Australia |  | 18 | 14 | +4 |
| 5 | Bjorn Wirdheim CTE-HVM |  | 13 | 9 | +4 |
| 6 | Sébastien Bourdais Newman/Haas | | 5 | 2 | +3 |
| 7 | Jimmy Vasser PKV Racing |  | 8 | 6 | +2 |
| 8 | Mario Dominguez Forsythe |  | 6 | 4 | +2 |
| 9 | Timo Glock Rocketsports |  | 11 | 10 | +1 |
| 10 | Ronnie Bremer CTE-HVM |  | 9 | 8 | +1 |
| 11 | Ryan Hunter-Reay Rocketsports | | 16 | 15 | +1 |
| 12 | Alex Sperafico Dale Coyne | | 14 | 13 | +1 |
| 13 | Andrew Ranger Conquest Racing | | 7 | 7 | 0 |
| 14 | Paul Tracy Forsythe | | 3 | 3 | 0 |
| 15 | A.J. Allmendinger RuSPORT | | 2 | 5 | -3 |
| 16 | Oriol Servià Newman/Haas |  | 12 | 16 | -4 |
| 17 | Alex Tagliani Team Australia | | 4 | 18 | -14 |
| 18 | Justin Wilson RuSPORT |  | 1 | 17 | -16 |