| Singles | |
|---|---|
| 2016 Gimcheon Open ATP Challenger | |
| Champion |  Max Purcell |
| Runner-up | Andrew Whittington |
| Score | 3–6, 7–6(8–6), 5–1 retired |
Alexander Sarkissian was the defending champion but chose not to defend his title.
Max Purcell won the title after Andrew Whittington retired while trailing 3–6, 7–6(8–6), 5–1 in the final.
Zhang Ze (second round) Wu Di (second round)
Lee Duck-hee (first round) Luke Saville (first round)
Chen Ti (second round) Andrew Whittington (final, retired) Li Zhe (semifinals)
Nicolás Barrientos (first round)| Semifinals | Final | ||||||||||||
| 6 | Andrew Whittington | 6 | 77 | ||||||||||
| 7 | Li Zhe | 1 | 63 | ||||||||||
| 6 | Andrew Whittington | 6 | 66 | 1r | |||||||||
| Q | Max Purcell | 3 | 78 | 5 | |||||||||
| Q | Max Purcell | 6 | 6 | ||||||||||
| Kwon Soon-woo | 3 | 4 | |||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | Z Zhang | 2 | 77 | 6 | |||||||||||||||||||||||
| WC | Kim Young-seok | 6 | 65 | 4 | 1 | Z Zhang | 4 | 2 | |||||||||||||||||||
 T Niki | 6 | 6 | T Niki | 6 | 6 | ||||||||||||||||||||||
| Q | H-w Nam | 4 | 0 | T Niki | 6 | 63 | 5 | ||||||||||||||||||||
 T Ismailov | 6 | 6 | 6 | A Whittington | 4 | 77 | 7 | ||||||||||||||||||||
 A Escoffier | 4 | 3 | T Ismailov | 64 | 0r | ||||||||||||||||||||||
| WC | U-s Park | 3 | 0 | 6 | A Whittington | 77 | 2 | ||||||||||||||||||||
| 6 | A Whittington | 6 | 6 | 6 | A Whittington | 6 | 77 | ||||||||||||||||||||
| 3 | D-h Lee | 4 | 4 | 7 | Z Li | 1 | 63 | ||||||||||||||||||||
 E Leshem | 6 | 6 | E Leshem | 6 | 6 | ||||||||||||||||||||||
| Makoto Ochi | 6 | 6 | M Ochi | 1 | 1 | ||||||||||||||||||||||
| Yuya Kibi | 3 | 1 | E Leshem | 3 | 1 | ||||||||||||||||||||||
| Shuichi Sekiguchi | 61 | 6 | 6 | 7 | Z Li | 6 | 6 | ||||||||||||||||||||
| Alt |  Sidharth Rawat | 77 | 4 | 2 | S Sekiguchi | 3 | 1 | ||||||||||||||||||||
| WC | J-m Seol | 2 | 6 | 2 | 7 | Z Li | 6 | 6 | |||||||||||||||||||
| 7 | Z Li | 6 | 3 | 6 | |||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 8 | N Barrientos | 6 | 3 | 3 | |||||||||||||||||||||||
| T-h Yang | 3 | 6 | 6 | T-h Yang | 5 | 6 | 1 | ||||||||||||||||||||
| Q | D Yoo | 61 | 6 | 6 | Q | D Yoo | 7 | 4 | 0r | ||||||||||||||||||
| J Wang | 77 | 2 | 4 | T-h Yang | 68 | 2 | |||||||||||||||||||||
| K Takeuchi | 77 | 3 | Q | M Purcell | 710 | 6 | |||||||||||||||||||||
| Q | C Wang | 64 | 0r | K Takeuchi | 1 | 6 | 3 | ||||||||||||||||||||
| Q | M Purcell | 6 | 6 | Q | M Purcell | 6 | 2 | 6 | |||||||||||||||||||
| 4 | L Saville | 4 | 4 | Q | M Purcell | 6 | 6 | ||||||||||||||||||||
| 5 | T Chen | 77 | 6 | S-w Kwon | 3 | 4 | |||||||||||||||||||||
| L-c Huang | 65 | 4 | 5 | T Chen | 4 | 4 | |||||||||||||||||||||
| S-w Kwon | 6 | 3 | 6 | S-w Kwon | 6 | 6 | |||||||||||||||||||||
 Julien Dubail | 4 | 6 | 3 | S-w Kwon | 3 | 6 | 6 | ||||||||||||||||||||
| Kim Cheong-eui | 5 | 6 | 1 | C-e Kim | 6 | 3 | 4 | ||||||||||||||||||||
| WC | Shin San-hui | 7 | 2 | 0r | C-e Kim | 6 | 77 | ||||||||||||||||||||
| K Uchida | 1 | 2 | 2 | D Wu | 4 | 65 | |||||||||||||||||||||
| 2 | D Wu | 6 | 6 | ||||||||||||||||||||||||
Tiago Fernandes was the defending champion, having defeated Sean Berman in the 2010 final. He chose not to defend his title.
Jiří Veselý won the title defeating Luke Saville 6–0, 6–3, in the final. The player from Czech Republic won every match in straight sets.
Dutch players Justin Eleveld and Jannick Lupescu chose to not defend their 2010 title, when they defeated Kevin Krawietz and Dominik Schulz in the final.
Filip Horanský and Jiří Veselý won this year's title, by defeating Ben Wagland and Andrew Whittington 6–4, 6–4 in the final match.
Agustín Velotti was the defending champion but was not eligible to participate.
Bjorn Fratangelo won this event, defeating 14th-seed Dominic Thiem 3–6, 6–3, 8–6 in the final.
Márton Fucsovics was the defending champion but was no longer eligible to compete as a Junior.
Jack Sock was the defending champion, but participated in the men's main draw, as he was ineligible to defend his title.
Duilio Beretta and Oliver Golding were the defending champions but did not enter this year.
Ruan Roelofse and John-Patrick Smith were the defending champions but Roelofse decided not to participate.
Smith played alongside Matt Reid and won the title, defeating Toshihide Matsui and Danai Udomchoke in the final 6–4, 6–2.
Alex Bolt and Andrew Whittington were the defending champions, but Bolt decided not to participate this year. Whittington played alongside Karunuday Singh and lost in the final.
Andrey Kuznetsov and Aleksandr Nedovyesov were the defending champions, but only Aleksandr Nedovyesov returned to defend his title, partnering up with Denys Molchanov.
Matteo Donati and Andrey Golubev beat second seeds Denys Molchanov and Aleksandr Nedovyesov 3–6, 7–6(7–5), [10–1]
Tomáš Berdych was the defending champion and successfully defended his title, defeating Richard Gasquet in the final, 7−6(7−5), 6−7(2−7), 6−3.
Dudi Sela was the defending champion but chose not to defend his title.
Chung Hyeon was the defending champion but chose not to defend his title.
Blake Mott was the defending champion but lost in the first round to Brydan Klein.
Yūichi Sugita was the defending champion but lost in the quarterfinals to Lloyd Harris.
Taro Daniel was the defending champion but chose not to defend his title.
Ivo Karlović was the defending champion, but lost in the quarterfinals to Peter Gojowczyk.
Darian King was the defending champion but chose not to defend his title.
Ernesto Escobedo was the defending champion but chose not to defend his title.
Yūichi Sugita was the defending champion but chose not to defend his title.
Omar Jasika was the defending champion but withdrew before the tournament began.