2017 Challenger ATP Cachantún Cup – Singles
| Singles | |
|---|---|
| 2017 Challenger ATP Cachantún Cup | |
| Champion |
 Rogério Dutra Silva
|
| Runner-up |
 Nicolás Jarry
|
| Final score | 7–5, 6–3 |
Facundo Bagnis was the defending champion but chose not to defend his title.
Rogério Dutra Silva won the title after defeating Nicolás Jarry 7–5, 6–3 in the final.
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