| Singles | |
|---|---|
| 2016 Challenger ATP Cachantún Cup | |
| Champion |
|
| Runner-up |
|
| Final score | 6–7(3–7), 6–4, 6–3 |
Facundo Bagnis was the defending champion.
Facundo Bagnis defended his title by repeating as champion, defeating Rogério Dutra Silva 6–7(3–7), 6–4, 6–3 in the final.