# 2016 OEC Kaohsiung – Singles

Chung Hyeon was the defending champion and successfully defended his title after defeating Lee Duck-hee 6–4, 6–2 in the final.

## Seeds

* John Millman (second round)
* Lu Yen-hsun (semifinals)
* Dudi Sela (second round)
* Jordan Thompson (second round)
* Yoshihito Nishioka (first round)
* Yūichi Sugita (semifinals)
* Jozef Kovalík (first round)
* Denis Kudla (first round)

## 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 |
| | Lee Duck-hee | 6 | 6 | | | | |
| 6 | Yūichi Sugita | 2 | 3 | | | | |
| 6 | Yūichi Sugita | 2 | 3 | | Lee Duck-hee | 4 | 2 |
| | | | | | Chung Hyeon | 6 | 6 |
| | Chung Hyeon | 6 | 3 | 7$^7$ | Chung Hyeon | 6 | 6 |
| 2 | Lu Yen-hsun | 2 | 6 | 6$^2$ | | | |

### 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 | J Millman | 6 | 6 | | | | | | | | | | | | | | | |
| WC | J Wang | 3 | 2 | | 1 | J Millman | 5 | 6 | 6$^4$ | | | | | | | | | |
| Q | Y Uchiyama | 6 | 0 | | Q | Y Uchiyama | 7 | 3 | 7$^7$ | | | | | | | | | |
| | H Laaksonen | 4 | 0$^r$ | | | | | | | Q | Y Uchiyama | 4 | 4 | | | | | |
| | H Moriya | 6$^6$ | 4 | | | | | | | | D-h Lee | 6 | 6 | | | | | |
| | D-h Lee | 7$^8$ | 6 | | | D-h Lee | 6 | 6 | | | | | | | | | | |
| Q | T Niki | 1 | 6 | 6 | Q | T Niki | 4 | 3 | | | | | | | | | | |
| 7 | J Kovalík | 6 | 2 | 1 | | | | | | | | | | | | D-h Lee | 6 | 6 |
| 3 | D Sela | 6 | 6 | | | | | | | | | | | | 6 | Y Sugita | 2 | 3 |
| | G Soeda | 4 | 4 | | 3 | D Sela | 4 | 6 | 1 | | | | | | | | | |
| | A Karatsev | 6$^2$ | 4$^r$ | | PR | M Pecotić | 6 | 4 | 6 | | | | | | | | | |
| PR | M Pecotić | 7$^7$ | 5 | | | | | | | PR | M Pecotić | 6 | 6$^3$ | 3 | | | | |
| | M Ebden | 6 | 6 | | | | | | | 6 | Y Sugita | 4 | 7$^7$ | 6 | | | | |
| WC | K-y Lee | 3 | 2 | | | M Ebden | 6$^4$ | 3 | | | | | | | | | | |
| | A Sarkissian | 4 | 5 | | 6 | Y Sugita | 7$^7$ | 6 | | | | | | | | | | |
| 6 | Y Sugita | 6 | 7 | | | | | | | | | | | | | | | |

### 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 | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 5 | Y Nishioka | 4 | 3 | | | | | | | | | | | | | | | |
| | J Jung | 6 | 6 | | | J Jung | 3 | 4 | | | | | | | | | | |
| Q | C Rungkat | 6 | 6$^2$ | 6$^3$ | | A Weintraub | 6 | 6 | | | | | | | | | | |
| | A Weintraub | 4 | 7$^7$ | 7$^7$ | | | | | | | A Weintraub | 4 | 4 | | | | | |
| | H Chung | 6 | 6 | | | | | | | | H Chung | 6 | 6 | | | | | |
| WC | T-h Yang | 0 | 4 | | | H Chung | 6$^9$ | 6 | 7$^7$ | | | | | | | | | |
| | A Santillan | 1 | 3 | | 4 | J Thompson | 7$^{11}$ | 4 | 6$^5$ | | | | | | | | | |
| 4 | J Thompson | 6 | 6 | | | | | | | | | | | | H Chung | 6 | 3 | 7$^7$ |
| 8 | D Kudla | 5 | 6$^8$ | | | | | | | | | | | 2 | Y-h Lu | 2 | 6 | 6$^2$ |
| WC | T-l Wu | 7 | 7$^{10}$ | | WC | T-l Wu | 3 | 4 | | | | | | | | | | |
| | A Whittington | 6$^4$ | 2 | | Q | Y Kibi | 6 | 6 | | | | | | | | | | |
| Q | Yuya Kibi | 7$^7$ | 6 | | | | | | | Q | Y Kibi | 1 | 2 | | | | | |
| | T Chen | 2 | 4 | | | | | | | 2 | Y-h Lu | 6 | 6 | | | | | |
| | L Vanni | 6 | 6 | | | L Vanni | 3 | 2 | | | | | | | | | | |
| | Z Zhang | 5 | 2 | | 2 | Y-h Lu | 6 | 6 | | | | | | | | | | |
| 2 | Y-h Lu | 7 | 6 | | | | | | | | | | | | | | | |