# 2017 Busan Open – Singles

Konstantin Kravchuk was the defending champion but lost in the first round to Kwon Soon-woo.
Vasek Pospisil won the title after defeating Go Soeda 6–1, 6–2 in the final.

## Seeds

* Lu Yen-hsun (quarterfinals, retired)
* Vasek Pospisil (champion)
* Blaž Kavčič (second round)
* Dudi Sela (semifinals)
* Illya Marchenko (first round)
* Konstantin Kravchuk (first round)
* Thomas Fabbiano (first round)
* Ruben Bemelmans (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 | Final | Final | Final | Final |
| | Kwon Soon-woo | 4 | 2 | | | | |
| | Go Soeda | 6 | 6 | | | | |
| | Go Soeda | 6 | 6 | | Go Soeda | 1 | 2 |
| | | | | 2 | Vasek Pospisil | 6 | 6 |
| 4 | Dudi Sela | 4 | 3 | 2 | Vasek Pospisil | 6 | 6 |
| 2 | Vasek Pospisil | 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 | Quarterfinals | Semifinals | Semifinals | Semifinals |
| 1 | Y-h Lu | 6 | 6 | | | | | | | | | | | | | | |
| | T Chen | 4 | 4 | | 1 | Y-h Lu | 4 | 6 | 6 | | | | | | | | |
| | M Purcell | 6$^3$ | 6 | 3 | Q | R Sarmiento | 6 | 4 | 3 | | | | | | | | |
| Q | R Sarmiento | 7$^7$ | 1 | 6 | | | | | | 1 | Y-h Lu | 5 | 0$^r$ | | | | |
| | D-h Lee | 6 | 6 | | | | | | | | S-w Kwon | 7 | 0 | | | | |
| | A Sarkissian | 3 | 2 | | | D-h Lee | 7$^9$ | 6$^2$ | 4 | | | | | | | | |
| | S-w Kwon | 7$^7$ | 6 | | | S-w Kwon | 6$^7$ | 7$^7$ | 6 | | | | | | | | |
| 6 | K Kravchuk | 6$^4$ | 3 | | | | | | | | | | | | S-w Kwon | 4 | 2 |
| 3 | B Kavčič | 6 | 6$^2$ | 7 | | | | | | | | | | | G Soeda | 6 | 6 |
| Alt | S Bangoura | 0 | 7$^7$ | 5 | 3 | B Kavčič | 4 | 6 | 3 | | | | | | | | |
| WC | S-c Hong | 6 | 3 | 1 | | G Soeda | 6 | 0 | 6 | | | | | | | | |
| | G Soeda | 2 | 6 | 6 | | | | | | | G Soeda | 3 | 6 | 6 | | | |
| | H Moriya | 6 | 6 | | | | | | | | M Ebden | 6 | 3 | 3 | | | |
| Q | E Corrie | 4 | 4 | | | H Moriya | 3 | 2 | | | | | | | | | |
| | M Ebden | 6 | 6 | | | M Ebden | 6 | 6 | | | | | | | | | |
| 5 | I Marchenko | 2 | 3 | | | | | | | | | | | | | | |

### 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 |
| 8 | R Bemelmans | 3 | 3 | | | | | | | | | | | | | | |
| Q | A Krajicek | 6 | 6 | | Q | A Krajicek | 6 | 6 | | | | | | | | | |
| | B Klein | 6 | 6 | | | B Klein | 4 | 2 | | | | | | | | | |
| | M Tepavac | 3 | 0 | | | | | | | Q | A Krajicek | 4 | 2 | | | | |
| WC | Oh Chan-yeong | 6 | 2 | 2 | | | | | | 4 | D Sela | 6 | 6 | | | | |
| | S Doumbia | 2 | 6 | 6 | | S Doumbia | 2 | 3 | | | | | | | | | |
| WC | T-l Wu | 1 | 6 | 5 | 4 | D Sela | 6 | 6 | | | | | | | | | |
| 4 | D Sela | 6 | 2 | 7 | | | | | | | | | | 4 | D Sela | 4 | 3 |
| 7 | T Fabbiano | 4 | 2 | | | | | | | | | | | 2 | V Pospisil | 6 | 6 |
| | T Ito | 6 | 6 | | | T Ito | 6 | 1 | 6 | | | | | | | | |
| | Yuya Kibi | 1 | 6 | 4 | WC | Ho Chung | 2 | 6 | 1 | | | | | | | | |
| WC | Ho Chung | 6 | 4 | 6 | | | | | | | T Ito | 3 | 5 | | | | |
| Q | L Broady | 6 | 6 | | | | | | | 2 | V Pospisil | 6 | 7 | | | | |
| PR | A Ward | 2 | 0 | | Q | L Broady | 3 | 6$^2$ | | | | | | | | | |
| | M Chiudinelli | 2 | 5 | | 2 | V Pospisil | 6 | 7$^7$ | | | | | | | | | |
| 2 | V Pospisil | 6 | 7 | | | | | | | | | | | | | | |