# 2019 Busan Open – Singles

Matthew Ebden was the defending champion but chose not to defend his title.
Ričardas Berankis won the title after defeating Andrew Harris 7–6$^{(7–5)}$, 6–2 in the final.

## Seeds

All seeds receive a bye into the second round.
* Ričardas Berankis (champion)
* Sergiy Stakhovsky (second round)
* Brayden Schnur (second round)
* Lukáš Lacko (third round)
* Jason Jung (second round)
* Marcos Baghdatis (third round)
* Evgeny Donskoy (quarterfinals)
* Ramkumar Ramanathan (second round)
* Nikola Milojević (second round)
* Tatsuma Ito (quarterfinals)
* Kwon Soon-woo (second round)
* Ruben Bemelmans (second round)
* Yūichi Sugita (second round)
* Hiroki Moriya (second round)
* Go Soeda (quarterfinals)
* Yasutaka Uchiyama (semifinals)

## 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

| Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| 1 | Ričardas Berankis | 5 | 6 | 6 | | | | | | | | | |
| | Chung Yun-seong | 7 | 3 | 4 | | | | | | | | | |
| | Chung Yun-seong | 7 | 3 | 4 | 1 | Ričardas Berankis | 6 | 7 | | | | | |
| | | | | | 16 | Yasutaka Uchiyama | 2 | 5 | | | | | |
| 16 | Yasutaka Uchiyama | 4 | 6 | 6 | 16 | Yasutaka Uchiyama | 2 | 5 | | | | | |
| 10 | Tatsuma Ito | 6 | 0 | 3 | | | | | | | | | |
| 10 | Tatsuma Ito | 6 | 0 | 3 | | | | | | 1 | Ričardas Berankis | 7$^7$ | 6 |
| | | | | | | | | | | | Andrew Harris | 6$^5$ | 2 |
| 7 | Evgeny Donskoy | 4 | 6$^5$ | | | | | | | | | | | Andrew Harris | 6$^5$ | 2 |
| | Andrew Harris | 6 | 7$^7$ | | | | | | | | | | |
| | Andrew Harris | 6 | 7$^7$ | | | Andrew Harris | 5 | 7$^8$ | 2 | | | | |
| | | | | | | Akira Santillan | 7 | 6$^6$ | 1$^r$ | | | | |
| | Akira Santillan | 6 | 6 | | | Akira Santillan | 7 | 6$^6$ | 1$^r$ | | | | |
| 15 | Go Soeda | 3 | 3 | | | | | | | | | | |

### Top half
#### Section 1

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 1 | R Berankis | 1 | 7$^9$ | 6 | | | | | | | | | | |
| | L Broady | 7 | 6 | | | L Broady | 6 | 6$^7$ | 4 | | | | | | | | | | |
| Q | Xia Zihao | 5 | 1 | | | | | | | 1 | R Berankis | 6 | 3 | 6 | | | | | |
| Q | Makoto Ochi | 6$^3$ | 4 | | | | | | | | D-h Lee | 3 | 6 | 3 | | | | | |
| | D-h Lee | 7$^7$ | 6 | | | D-h Lee | 5 | 6 | 7$^7$ | | | | | | | | | | |
| | | | | | 13 | Y Sugita | 7 | 3 | 6$^3$ | | | | | | | | | | |
| | | | | | | | | | | | | | | | 1 | R Berankis | 5 | 6 | 6 |
| | | | | | | | | | | | | | | | | Y-s Chung | 7 | 3 | 4 |
| | | | | | 9 | N Milojević | 2 | 6 | 5 | | | | | | | | | | |
| | Y-s Chung | 3 | 6 | 6 | | Y-s Chung | 6 | 3 | 7 | | | | | | | | | | |
| | Z Li | 6 | 3 | 4 | | | | | | | Y-s Chung | 6 | 6 | | | | | | |
| | Evan Song | 6 | 3 | 3 | | | | | | 6 | M Baghdatis | 2 | 3 | | | | | | |
| | D Sela | 3 | 6 | 6 | | D Sela | 6 | 2 | 2 | | | | | | | | | | |
| | | | | | 6 | M Baghdatis | 4 | 6 | 6 | | | | | | | | | | |

#### Section 2

| First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | 4 | L Lacko | 3 | 6 | 6 | | | | | | | | | | |
| WC | Kim Young-seok | 1 | 0 | | L Saville | 6 | 3 | 4 | | | | | | | | | | |
| | L Saville | 6 | 6 | | | | | | 4 | L Lacko | 6 | 4 | 0 | | | | | |
| | M Banes | 6 | 7$^{10}$ | | | | | | 16 | Y Uchiyama | 3 | 6 | 6 | | | | | |
| WC | Kim Cheong-eui | 1 | 6$^8$ | | M Banes | 4 | 2 | | | | | | | | | | | |
| | | | | 16 | Y Uchiyama | 6 | 6 | | | | | | | | | | | |
| | | | | | | | | | | | | | | 16 | Y Uchiyama | 4 | 6 | 6 |
| | | | | | | | | | | | | | | 10 | T Ito | 6 | 0 | 3 |
| | | | | 10 | T Ito | 6 | 7$^7$ | | | | | | | | | | | |
| | T-l Wu | 7$^7$ | 7 | | T-l Wu | 4 | 6$^2$ | | | | | | | | | | | |
| | M Neuchrist | 6$^2$ | 5 | | | | | | 10 | T Ito | 7 | 6$^6$ | 6 | | | | | |
| | C İlkel | 6 | 7$^7$ | | | | | | | C İlkel | 5 | 7$^8$ | 4 | | | | | |
| WC | J-s Nam | 4 | 6$^2$ | | C İlkel | 6 | 7$^7$ | | | | | | | | | | | |
| | | | | 8 | R Ramanathan | 1 | 6$^0$ | | | | | | | | | | | |

### Bottom half
#### Section 3

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 7 | E Donskoy | 6 | 6 | | | | | | | | | | |
| | S Mukund | 7$^9$ | 3 | 7 | | S Mukund | 2 | 1 | | | | | | | | | | |
| | S Myneni | 6$^7$ | 6 | 5 | | | | | | 7 | E Donskoy | 6 | 7$^7$ | | | | | |
| WC | M-k Song | 6 | 3 | 2 | | | | | | | E King | 2 | 6$^3$ | | | | | |
| | E King | 3 | 6 | 6 | | E King | 6$^4$ | 7 | 7$^{10}$ | | | | | | | | | |
| | | | | | 12 | R Bemelmans | 7$^7$ | 5 | 6$^8$ | | | | | | | | | |
| | | | | | | | | | | | | | | | 7 | E Donskoy | 4 | 6$^5$ |
| | | | | | | | | | | | | | | | | A Harris | 6 | 7$^7$ |
| | | | | | 14 | H Moriya | 5 | 3 | | | | | | | | | | |
| | S Robert | 4 | 2 | | | A Harris | 7 | 6 | | | | | | | | | | |
| | A Harris | 6 | 6 | | | | | | | | A Harris | 6 | 4 | 6 | | | | |
| | M Purcell | 6 | 6 | | | | | | | | M Purcell | 4 | 6 | 2 | | | | |
| | F Peliwo | 4 | 3 | | | M Purcell | 6 | 6 | | | | | | | | | | |
| | | | | | 3 | B Schnur | 4 | 3 | | | | | | | | | | |

#### Section 4

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 5 | J Jung | 3 | 6 | 2 | | | | | | | | |
| | A Šetkić | 2 | 2 | | | A Santillan | 6 | 3 | 6 | | | | | | | | |
| | A Santillan | 6 | 6 | | | | | | | | A Santillan | 7$^{11}$ | 6 | | | | |
| | T-h Yang | 6 | 6 | | | | | | | | T-h Yang | 6$^9$ | 1 | | | | |
| | K King | 3 | 4 | | | T-h Yang | 6 | 7$^{14}$ | | | | | | | | | |
| | | | | | 11 | S-w Kwon | 3 | 6$^{12}$ | | | | | | | | | |
| | | | | | | | | | | | | | | | A Santillan | 6 | 6 |
| | | | | | | | | | | | | | | 15 | G Soeda | 3 | 3 |
| | | | | | 15 | G Soeda | 6 | 6 | | | | | | | | | |
| | D Wu | 6 | 3 | 6 | | D Wu | 1 | 1 | | | | | | | | | |
| | Roy Smith | 3 | 6 | 1 | | | | | | 15 | G Soeda | 6 | 6 | | | | |
| WC | S-c Hong | 2 | 5 | | | | | | | | K Uchida | 4 | 3 | | | | |
| | K Uchida | 6 | 7 | | | K Uchida | 7$^{10}$ | 6 | | | | | | | | | |
| | | | | | 2 | S Stakhovsky | 6$^8$ | 3 | | | | | | | | | |