| Singles | |
|---|---|
| 2017 Challenger ATP Cachantún Cup | |
| Champion |  Rogério Dutra Silva |
| Runner-up |  Nicolás Jarry |
| 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.
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)| Semifinals | Final | ||||||||||||
| 1 | Rogério Dutra Silva | 6 | 6 | ||||||||||
| PR | Simone Bolelli | 4 | 2 | ||||||||||
| 1 | Rogério Dutra Silva | 7 | 6 | ||||||||||
| WC | Nicolás Jarry | 5 | 3 | ||||||||||
| WC | Nicolás Jarry | w/o | |||||||||||
| Q | Guilherme Clezar | ||||||||||||
| First round | Second round | Quarterfinals | 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 | 77 | 6 | Q |  C Lindell | 1 | 6 | 2 | ||||||||||||||||||||
 J Hernández-Fernández | 65 | 4 | M Cecchinato | 66 | 6 | 65 | |||||||||||||||||||||
| Q | C Lindell | 6 | 3 | 6 | Q | C Lindell | 78 | 4 | 77 | ||||||||||||||||||
| 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 | 65 | 6 | 3 | |||||||||||||||||||||
| PR | S Bolelli | 6 | 3 | PR | S Bolelli | 77 | 4 | 6 | |||||||||||||||||||
| 7 | A Giannessi | 4 | 2r | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | 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 | 65 | 66 | ||||||||||||||||||||
| WC | N Jarry | 6 | 6 | WC | N Jarry | 77 | 78 | ||||||||||||||||||||
| 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 | 78 | 6 | Q | G Clezar | ||||||||||||||||||||||
| R Ramírez Hidalgo | 66 | 2 | 5 | A De Greef | 77 | 4 | 1 | ||||||||||||||||||||
| G Andreozzi | 6 | 6 | G Andreozzi | 65 | 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 | 64 | 4 | 2 | N Kicker | 6 | 4 | 5 | ||||||||||||||||||||
| 2 | N Kicker | 77 | 6 | ||||||||||||||||||||||||
Tommy Robredo was the defending champion but withdrew due to leg injury.
Nicolás Almagro defended his title by defeating Filippo Volandri 6–3, 4–6, 6–4 in the final.
David Ferrer won the tournament winning the final against the defending champion Nicolás Almagro by 4–6, 6–3, 6–2.
Gilles Simon was the defending champion, but lost in the second round to Tommy Haas.
Haas went to the final, but lost to Juan Mónaco 5–7, 4–6.
Rafael Nadal defeated David Nalbandian in the final, 6–2, 6–3 to win the singles tennis title at the 2013 Brasil Open.
David Ferrer was the defending champion, and he successfully defended his title by defeating Stanislas Wawrinka in the final 6–4, 3–6, 6–1.
Nicolás Almagro was the two-time defending champion but decided not to participate.
Albert Montañés won the title, defeating Gaël Monfils in the final, 6–0, 7–6.(7–3)
Rafael Nadal was the defending champion but chose not to compete.
Pablo Cuevas was the defending champion and successfully defended his title, defeating Pablo Carreño Busta in the final, 7–6(7–4), 6–3.
Facundo Bagnis was the defending champion.
Pablo Carreño Busta was the defending champion but chose not to participate.
Paolo Lorenzi was the defending champion but chose not to defend his title.
Facundo Argüello was the defending champion but chose not to defend his title.
Guido Pella was the defending champion but chose not to defend his title.
Dominic Thiem was the defending champion, but chose to compete in Rotterdam instead.
Pere Riba was the defending champion but chose not to defend his title.
Diego Schwartzman was the defending champion but chose not to defend his title.
Máximo González was the defending champion but lost in the first round to Facundo Bagnis.
Guido Pella was the defending champion but chose not to defend his title.
Andrey Rublev was the defending champion, but lost in the quarterfinals to Robin Haase. This was Rublev's first tournament back on tour after missing three months due to a stress fracture in his back.