| Singles | |
|---|---|
| 2013 PBZ Zagreb Indoors | |
| Champion |
|
| Runner-up |
|
| Final score | 6–3, 6–1 |
Mikhail Youzhny was the defending champion but lost in the semifinals to top-seeded Marin Čilić.
Čilić went on to win the title by defeating Jürgen Melzer 6–3, 6–1 in the final.