The 2006 Grand Prix of Houston was the second round of the 2006 Champ Car World Series season, held on May 13, 2006 on the streets around Reliant Park in Houston, Texas.
| Pos | Nat | Name | Team | Qual 1 | Qual 2 | Best |
|---|---|---|---|---|---|---|
| 1 | Mario Domínguez | Forsythe Racing | 1:00.134 | 58.026 | 58.026 | |
| 2 | Bruno Junqueira | Newman-Haas Racing | 59.617 | 58.918 | 58.918 | |
| 3 | Paul Tracy | Forsythe Racing | 1:00.032 | 58.426 | 58.426 | |
| 4 | A. J. Allmendinger | RuSPORT | 1:00.047 | 58.572 | 58.572 | |
| 5 | Sébastien Bourdais | Newman-Haas Racing | no time | 58.627 | 58.627 | |
| 6 | Alex Tagliani | Team Australia | 1:00.047 | 58.765 | 58.765 | |
| 7 | Justin Wilson | RuSPORT | 1:00.149 | 58.829 | 58.829 | |
| 8 | Oriol Servià | PKV Racing | 1:00.268 | 59.062 | 59.062 | |
| 9 | Nelson Philippe | CTE Racing - HVM | 1:01.260 | 59.232 | 59.232 | |
| 10 | Will Power | Team Australia | 1:00.690 | 59.302 | 59.302 | |
| 11 | Charles Zwolsman | Mi-Jack Conquest Racing | 1:01.903 | 59.385 | 59.385 | |
| 12 | Dan Clarke | CTE Racing - HVM | no time | 59.550 | 59.550 | |
| 13 | Andrew Ranger | Mi-Jack Conquest Racing | 1:03.165 | 59.740 | 59.740 | |
| 14 | Cristiano da Matta | Dale Coyne Racing | 1:01.612 | 1:00.195 | 1:00.195 | |
| 15 | Katherine Legge | PKV Racing | 1:01.831 | 1:00.265 | 1:00.265 | |
| 16 | Nicky Pastorelli | Rocketsports Racing | 1:04.091 | 1:00.269 | 1:00.269 | |
| 17 | Jan Heylen | Dale Coyne Racing | no time | 1:00.839 | 1:00.839 |
| Pos | No | Driver | Team | Laps | Time/Retired | Grid | Points |
|---|---|---|---|---|---|---|---|
| 1 | 1 | Sébastien Bourdais | Newman-Haas Racing | 96 | 1:59:57.021 | 5 | 33 |
| 2 | 3 | Paul Tracy | Forsythe Racing | 96 | +1.2 secs | 3 | 27 |
| 3 | 7 | Mario Domínguez | Forsythe Racing | 96 | +2.3 secs | 1 | 27 |
| 4 | 4 | Nelson Philippe | CTE Racing - HVM | 96 | +3.7 secs | 9 | 23 |
| 5 | 9 | Justin Wilson | RuSPORT | 96 | +4.0 secs | 2 | 21 |
| 6 | 27 | Andrew Ranger | Mi-Jack Conquest Racing | 96 | +5.4 secs | 13 | 20 |
| 7 | 5 | Will Power | Team Australia | 96 | +6.0 secs | 10 | 17 |
| 8 | 10 | A. J. Allmendinger | RuSPORT | 96 | +7.7 secs | 4 | 15 |
| 9 | 19 | Cristiano da Matta | Dale Coyne Racing | 95 | + 1 Lap | 14 | 13 |
| 10 | 2 | Bruno Junqueira | Newman-Haas Racing | 93 | + 3 Laps | 2 | 12 |
| 11 | 15 | Alex Tagliani | Team Australia | 90 | Contact | 6 | 10 |
| 12 | 6 | Oriol Servià | PKV Racing | 87 | Contact | 8 | 9 |
| 13 | 11 | Jan Heylen | Dale Coyne Racing | 82 | + 14 Laps | 17 | 8 |
| 14 | 20 | Katherine Legge | PKV Racing | 81 | + 15 Laps | 15 | 7 |
| 15 | 34 | Charles Zwolsman | Mi-Jack Conquest Racing | 69 | Contact | 11 | 6 |
| 16 | 14 | Dan Clarke | CTE Racing - HVM | 33 | Mechanical | 12 | 5 |
| 17 | 8 | Nicky Pastorelli | Rocketsports Racing | 29 | Mechanical | 16 | 4 |
| Laps | Cause |
|---|---|
| 27-32 | Track problems |
| 32-33 | Yellow restart |
| 34-36 | Pastorelli (8) & Heylen (11) crash |
| 43-46 | Legge (20) crash |
| 71-76 | Power (5) & Zwolsman (34) crash |
| 88-95 | Servià (6) crash; Tagliani (15) crash |
|
|