| Singles | |
|---|---|
| 2009 Legg Mason Tennis Classic | |
| Champion |
|
| Runner-up |
|
| Final score | 3–6, 7–5, 7–6(8–6) |
Juan Martín del Potro was the defending champion, and won for the second straight year in the final 3–6, 7–5, 7–6(8–6), over Andy Roddick.
All seeds receive a bye into the second round.