# 2017 Challenger ATP Cachantún Cup – Singles

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.

## Seeds

* Rogério Dutra Silva (champion)
* Nicolás Kicker (second round)
* Gerald Melzer (first round)
* Taro Daniel (quarterfinals)
* Arthur De Greef (second round)
* Íñigo Cervantes (first round)
* Alessandro Giannessi (first round, retired)
* João Souza (quarterfinals)

## Draw
### Key

* Q = Qualifier
* WC = Wild card
* LL = Lucky loser
* Alt = Alternate
* SE = Special exempt
* PR = Protected ranking
* ITF = ITF entry
* JE = Junior exempt
* w/o = Walkover
* r = Retired
* d = Defaulted
* SR = Special ranking

### Finals

| Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| 1 | Rogério Dutra Silva | 6 | 6 | | | | |
| PR | Simone Bolelli | 4 | 2 | | | | |
| PR | Simone Bolelli | 4 | 2 | 1 | Rogério Dutra Silva | 7 | 6 |
| | | | | WC | Nicolás Jarry | 5 | 3 |
| WC | Nicolás Jarry | w/o | | WC | Nicolás Jarry | 5 | 3 |
| Q | Guilherme Clezar | | | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | R Dutra Silva | 7 | 6 | | | | | | | | | | | | | | | |
| | J Samper-Montaña | 5 | 0 | | 1 | R Dutra Silva | 6 | 6 | | | | | | | | | | |
| Q | H Dellien | 3 | 6 | 3 | | C Zampieri | 3 | 3 | | | | | | | | | | |
| | C Zampieri | 6 | 4 | 6 | | | | | | 1 | R Dutra Silva | 6 | 4 | 6 | | | | |
| | M Cecchinato | 7$^7$ | 6 | | | | | | | Q | C Lindell | 1 | 6 | 2 | | | | |
| | J Hernández-Fernández | 6$^5$ | 4 | | | M Cecchinato | 6$^6$ | 6 | 6$^5$ | | | | | | | | | |
| Q | C Lindell | 6 | 3 | 6 | Q | C Lindell | 7$^8$ | 4 | 7$^7$ | | | | | | | | | |
| 6 | Í Cervantes | 3 | 6 | 0 | | | | | | | | | | | 1 | R Dutra Silva | 6 | 6 |
| 4 | T Daniel | 6 | 3 | 6 | | | | | | | | | | | PR | S Bolelli | 4 | 2 |
| | F Coria | 4 | 6 | 1 | 4 | T Daniel | 6 | 6 | | | | | | | | | | |
| | M Bourgue | 4 | 3 | | | C Garin | 4 | 0 | | | | | | | | | | |
| | C Garin | 6 | 6 | | | | | | | 4 | T Daniel | 4 | 4 | | | | | |
| | G Lama | 3 | 1 | | | | | | | PR | S Bolelli | 6 | 6 | | | | | |
| | L Mayer | 6 | 6 | | | L Mayer | 6$^5$ | 6 | 3 | | | | | | | | | |
| PR | S Bolelli | 6 | 3 | | PR | S Bolelli | 7$^7$ | 4 | 6 | | | | | | | | | |
| 7 | A Giannessi | 4 | 2$^r$ | | | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals |
| 8 | J Souza | 6 | 6 | | | | | | | | | | | | | | |
| WC | MT Barrios Vera | 3 | 4 | | 8 | J Souza | 5 | 6 | 7 | | | | | | | | |
| | C Ruud | 6 | 6 | | | C Ruud | 7 | 4 | 5 | | | | | | | | |
| WC | M Soto | 2 | 1 | | | | | | | 8 | J Souza | 6$^5$ | 6$^6$ | | | | |
| WC | N Jarry | 6 | 6 | | | | | | | WC | N Jarry | 7$^7$ | 7$^8$ | | | | |
| Q | JP Varillas | 1 | 4 | | WC | N Jarry | 6 | 6 | | | | | | | | | |
| | M González | 6 | 6 | | | M González | 4 | 4 | | | | | | | | | |
| 3 | G Melzer | 4 | 1 | | | | | | | | | | | | WC | N Jarry | w/o |
| 5 | A De Greef | 7$^8$ | 6 | | | | | | | | | | | | Q | G Clezar | |
| | R Ramírez Hidalgo | 6$^6$ | 2 | | 5 | A De Greef | 7$^7$ | 4 | 1 | | | | | | | | |
| | G Andreozzi | 6 | 6 | | | G Andreozzi | 6$^5$ | 6 | 6 | | | | | | | | |
| WC | H Podlipnik-Castillo | 2 | 2 | | | | | | | | G Andreozzi | 4 | 6 | 3 | | | |
| Q | G Clezar | 3 | 6 | 6 | | | | | | Q | G Clezar | 6 | 2 | 6 | | | |
| | T Lamasine | 6 | 4 | 4 | Q | G Clezar | 4 | 6 | 7 | | | | | | | | |
| | M Janvier | 6$^4$ | 4 | | 2 | N Kicker | 6 | 4 | 5 | | | | | | | | |
| 2 | N Kicker | 7$^7$ | 6 | | | | | | | | | | | | | | |