# 2015 Busan Open – Singles

Go Soeda was the defending champion, but lost in the quarterfinals.
Chung Hyeon won the title, defeating Lukáš Lacko in the final 6–3, 6–1.

## Seeds

* Lu Yen-hsun (second round)
* Sam Groth (second round)
* Go Soeda (quarterfinals)
* Chung Hyeon (champion)
* Dudi Sela (first round)
* Tatsuma Ito (second round)
* Lukáš Lacko (final)
* Ryan Harrison (withdrew)

## 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 | Final | Final | Final | Final |
| SE | Grega Žemlja | 3 | 4 | | | | |
| 4 | Chung Hyeon | 6 | 6 | | | | |
| 4 | Chung Hyeon | 6 | 6 | 4 | Chung Hyeon | 6 | 6 |
| | | | | 7 | Lukáš Lacko | 3 | 1 |
| | Zhang Ze | 2 | 1 | 7 | Lukáš Lacko | 3 | 1 |
| 7 | Lukáš Lacko | 6 | 6 | | | | |

### 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 | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | Y-h Lu | 6 | 6 | | | | | | | | | | | | | | |
| WC | Hong Seong-chan | 3 | 4 | | 1 | Y-h Lu | 1 | 5 | | | | | | | | | |
| SE | G Žemlja | 6 | 2 | 6 | SE | G Žemlja | 6 | 7 | | | | | | | | | |
| | J Wang | 2 | 6 | 2 | | | | | | SE | G Žemlja | 6 | 6 | | | | |
| | Nam Ji-sung | 6 | 6 | | | | | | | | J-s Nam | 3 | 3 | | | | |
| | T Niki | 1 | 4 | | | J-s Nam | 6 | 3 | 6 | | | | | | | | |
| | D Nguyen | 6 | 1 | | | D Nguyen | 4 | 6 | 3 | | | | | | | | |
| 5 | D Sela | 1 | 0$^r$ | | | | | | | | | | | SE | G Žemlja | 3 | 4 |
| 4 | H Chung | 6 | 6 | | | | | | | | | | | 4 | H Chung | 6 | 6 |
| | J Jenkins | 0 | 3 | | 4 | H Chung | 7$^7$ | 7$^7$ | | | | | | | | | |
| | D Kudla | 6 | 6 | | | D Kudla | 6$^3$ | 6$^5$ | | | | | | | | | |
| WC | Y-k Lim | 0 | 4 | | | | | | | 4 | H Chung | 6 | 6 | | | | |
| Q | F Nielsen | 6 | 7$^7$ | | | | | | | Q | F Nielsen | 0 | 1 | | | | |
| Q | Kim Young-seok | 4 | 6$^4$ | | Q | F Nielsen | 6 | 7$^7$ | | | | | | | | | |
| | A Kudryavtsev | 3 | 3 | | 6 | T Ito | 3 | 6$^4$ | | | | | | | | | |
| 6 | T Ito | 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 | Semifinals | Semifinals | Semifinals | Semifinals |
| Q | J Jung | 5 | 4 | | | | | | | | | | | | | | |
| Q | D Kutrovsky | 7 | 6 | | Q | D Kutrovsky | 6 | 3 | 3 | | | | | | | | |
| | Z Zhang | 6 | 6 | | | Z Zhang | 3 | 6 | 6 | | | | | | | | |
| | J Thompson | 2 | 1 | | | | | | | | Z Zhang | 6 | 6 | | | | |
| | J-P Smith | 6 | 6 | | | | | | | 3 | G Soeda | 2 | 2 | | | | |
| | Oh Chan-yeong | 0 | 1 | | | J-P Smith | 6$^4$ | 3 | | | | | | | | | |
| LL | M Barton | 2 | 4 | | 3 | G Soeda | 7$^7$ | 6 | | | | | | | | | |
| 3 | G Soeda | 6 | 6 | | | | | | | | | | | | Z Zhang | 2 | 1 |
| 7 | L Lacko | 6 | 4 | 6 | | | | | | | | | | 7 | L Lacko | 6 | 6 |
| | L Saville | 1 | 6 | 3 | 7 | L Lacko | 6 | 3 | 6 | | | | | | | | |
| | E Corrie | 7$^7$ | 3 | 5 | | I Marchenko | 1 | 6 | 3 | | | | | | | | |
| | I Marchenko | 6$^5$ | 6 | 7 | | | | | | 7 | L Lacko | 6 | 6 | | | | |
| | H Moriya | 4 | 1 | | | | | | | SE | F Škugor | 4 | 1 | | | | |
| SE | F Škugor | 6 | 6 | | SE | F Škugor | 7$^7$ | 4 | 6 | | | | | | | | |
| | A Bolt | 4 | 5 | | 2 | S Groth | 6$^4$ | 6 | 1 | | | | | | | | |
| 2 | S Groth | 6 | 7 | | | | | | | | | | | | | | |