title: 2018 Gimcheon Open ATP Challenger – Doubles
text: # 2018 Gimcheon Open ATP Challenger – Doubles
  
  Marco Chiudinelli and Teymuraz Gabashvili were the defending champions but chose not to defend their title.
  
  Ruan Roelofse and John-Patrick Smith won the title after defeating Sanchai and Sonchat Ratiwatana 6–2, 6–3 in the final.
  
  ## Seeds
  
  * Ruan Roelofse / John-Patrick Smith (champions)
  * Aliaksandr Bury / Peng Hsien-yin (semifinals)
  * Sanchai Ratiwatana / Sonchat Ratiwatana (final)
  * Hsieh Cheng-peng / Christopher Rungkat (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
  
  | First round | First round | First round | First round | First round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
  | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
  | 1 | R Roelofse J-P Smith | $7^7$ | 7 | | | | | | | | | | | | | | |
  | | M Gong Y Uchiyama | $6^5$ | 5 | | 1 | R Roelofse J-P Smith | 6 | 6 | | | | | | | | | |
  | WC | Kim Yu-seob Lim Hyung-chan | $6^5$ | 3 | | | D Wu Ze Zhang | 2 | 3 | | | | | | | | | |
  | | D Wu Ze Zhang | $7^7$ | 6 | | | | | | 1 | R Roelofse J-P Smith | w/o | | | | | | |
  | 4 | C-p Hsieh C Rungkat | 6 | $7^7$ | | | | | | | F Nielsen V Pospisil | | | | | | | |
  | Q | Renta Tokuda W Trongcharoenchaikul | 2 | $6^3$ | | 4 | C-p Hsieh C Rungkat | 3 | 3 | | | | | | | | | |
  | | B Klein B Schnur | 2 | 5 | | | F Nielsen V Pospisil | 6 | 6 | | | | | | | | | |
  | | F Nielsen V Pospisil | 6 | 7 | | | | | | | | | | | 1 | R Roelofse J-P Smith | 6 | 6 |
  | WC | Lim Min-seob Yoon Il-sang | 3 | 3 | | | | | | | | | | | 3 | Sa Ratiwatana So Ratiwatana | 2 | 3 |
  | | M Purcell L Saville | 6 | 6 | | | M Purcell L Saville | 1 | 4 | | | | | | | | | |
  | | T Chen C-h Yi | 1 | 6 | [8] | 3 | Sa Ratiwatana So Ratiwatana | 6 | 6 | | | | | | | | | |
  | 3 | Sa Ratiwatana So Ratiwatana | 6 | 4 | [10] | | | | | 3 | Sa Ratiwatana So Ratiwatana | 3 | 6 | [10] | | | | |
  | WC | Choi Jae-won Moon Ju-hae | 2 | 3 | | | | | | 2 | A Bury H-y Peng | 6 | 3 | [4] | | | | |
  | | R Gonzales J Jung | 6 | 6 | | | R Gonzales J Jung | 2 | 2 | | | | | | | | | |
  | | T Matsui M McDonald | 5 | 1 | | 2 | A Bury H-y Peng | 6 | 6 | | | | | | | | | |
  | 2 | A Bury H-y Peng | 7 | 6 | | | | | | | | | | | | | | |
  