| Singles | |
|---|---|
| 2009 Western & Southern Financial Group Masters | |
| Champion |
|
| Runner-up |
|
| Final score | 6–1, 7–5 |
Andy Murray was the defending champion, but lost in the semifinals against Roger Federer.
Roger Federer won in the final, 6–1, 7–5, against Novak Djokovic.
The top eight seeds receive a bye into the second round.