title: 2018 Challenger ATP Cachantún Cup – Singles
text: # 2018 Challenger ATP Cachantún Cup – Singles
  
  Rogério Dutra Silva was the defending champion but lost in the quarterfinals to Carlos Gómez-Herrera.
  
  Marco Cecchinato won the title after defeating Gómez-Herrera 1–6, 6–1, 6–1 in the final.
  
  ## Seeds
  
  * Gastão Elias (second round)
  * Marco Cecchinato (champion)
  * Rogério Dutra Silva (quarterfinals)
  * Pedro Sousa (first round)
  * Andrej Martin (first round)
  * Thiago Monteiro (first round)
  * Carlos Berlocq (withdrew)
  * Thomaz Bellucci (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 | Semifinals | Final | Final | Final | Final | Final |
  | - | - | - | - | - | - | - | - | - | - |
  | | Jozef Kovalík | 3 | $6^1$ | | | | | | |
  | Q | Carlos Gómez-Herrera | 6 | $7^7$ | | | | | | |
  | Q | Carlos Gómez-Herrera | 6 | $7^7$ | | Q | Carlos Gómez-Herrera | 6 | 1 | 1 |
  | | | | | | 2 | Marco Cecchinato | 1 | 6 | 6 |
  | | Tommy Robredo | 6 | 1 | 4 | 2 | Marco Cecchinato | 1 | 6 | 6 |
  | 2 | Marco Cecchinato | 4 | 6 | 6 | | | | | |
  
  ### Top half
  
  | First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
  | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
  | 1 | G Elias | $7^7$ | 6 | | | | | | | | | | | | | | |
  | WC | MT Barrios Vera | $6^5$ | 4 | | 1 | G Elias | $6^4$ | 2 | | | | | | | | | |
  | | J Kovalík | 6 | 2 | 6 | | J Kovalík | $7^7$ | 6 | | | | | | | | | |
  | | A Giannessi | 3 | 6 | 2 | | | | | | J Kovalík | $6^6$ | $7^7$ | 6 | | | | |
  | | E López Pérez | 6 | 3 | 5 | | | | | 8 | T Bellucci | $7^8$ | $6^4$ | 3 | | | | |
  | | R Olivo | 3 | 6 | 7 | | R Olivo | 1 | 4 | | | | | | | | | |
  | Q | F Argüello | 2 | 3 | | 8 | T Bellucci | 6 | 6 | | | | | | | | | |
  | 8 | T Bellucci | 6 | 6 | | | | | | | | | | | | J Kovalík | 3 | $6^1$ |
  | 3 | R Dutra Silva | $7^7$ | 6 | | | | | | | | | | | Q | C Gómez-Herrera | 6 | $7^7$ |
  | | J Domingues | $6^2$ | 4 | | 3 | R Dutra Silva | 6 | 6 | | | | | | | | | |
  | LL | H Casanova | 7 | 3 | 6 | LL | H Casanova | 3 | 4 | | | | | | | | | |
  | WC | A Tabilo | 5 | 6 | 4 | | | | | 3 | R Dutra Silva | 6 | 3 | 3 | | | | |
  | | F Bagnis | $7^7$ | 6 | | | | | | Q | C Gómez-Herrera | 4 | 6 | 6 | | | | |
  | | C Moutet | $6^1$ | 1 | | | F Bagnis | 1 | 3 | | | | | | | | | |
  | LL | J Souza | 3 | 1 | | Q | C Gómez-Herrera | 6 | 6 | | | | | | | | | |
  | Q | C Gómez-Herrera | 6 | 6 | | | | | | | | | | | | | | |
  
  ### 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 | Semifinals | Semifinals |
  | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
  | 6 | T Monteiro | 2 | 3 | | | | | | | | | | | | | | | | |
  | Q | GM Moroni | 6 | 6 | | Q | GM Moroni | 6 | 6 | | | | | | | | | | | |
  | | S Ofner | 6 | 2 | 6 | | S Ofner | 2 | 1 | | | | | | | | | | | |
  | WC | G Lama | 4 | 6 | 4 | | | | | | Q | GM Moroni | $7^8$ | 3 | 0 | | | | | |
  | | M Bourgue | 4 | 6 | 2 | | | | | | | T Robredo | $6^6$ | 6 | 6 | | | | | |
  | WC | C Garín | 6 | 4 | 6 | WC | C Garín | 3 | 6 | 1 | | | | | | | | | | |
  | | T Robredo | 6 | 7 | | | T Robredo | 6 | 4 | 6 | | | | | | | | | | |
  | 4 | P Sousa | 4 | 5 | | | | | | | | | | | | | T Robredo | 6 | 1 | 4 |
  | 5 | A Martin | 4 | 0 | | | | | | | | | | | | 2 | M Cecchinato | 4 | 6 | 6 |
  | | G Andreozzi | 6 | 6 | | | G Andreozzi | 6 | 6 | | | | | | | | | | | |
  | Alt | P Krstin | 6 | 3 | 6 | Alt | P Krstin | 3 | 4 | | | | | | | | | | | |
  | | A De Greef | 3 | 6 | 0 | | | | | | | G Andreozzi | 1 | 2 | | | | | | |
  | | C Taberner | 6 | 7 | | | | | | | 2 | M Cecchinato | 6 | 6 | | | | | | |
  | Q | P Cachin | 4 | 5 | | | C Taberner | 3 | 6 | 4 | | | | | | | | | | |
  | | S Bolelli | 3 | 5 | | 2 | M Cecchinato | 6 | 2 | 6 | | | | | | | | | | |
  | 2 | M Cecchinato | 6 | 7 | | | | | | | | | | | | | | | | |
  