| Singles | |
|---|---|
| 2008 Countrywide Classic | |
| Champion |
|
| Runner-up |
|
| Final score | 6–1, 7–6(7–2) |
| Draw | 28 (4Q / 3WC) |
| Seeds | 8 |
Coordinates: 34°04′12″N 118°26′53″W / 34.070075°N 118.447991°W
Radek Štěpánek was the defending champion, but chose to compete the Beijing Summer Olympics instead.
Third-seeded Juan Martín del Potro won in the final 6–1, 7–6(7–2), against Andy Roddick.
The top four seeds receive a bye into the second round.