# 2017 Kobe Challenger – Singles

Chung Hyeon was the defending champion but chose not to defend his title.
Stéphane Robert won the title after defeating Calvin Hemery 7–6$^{(7–1)}$, 6–7$^{(5–7)}$, 6–1 in the final.

## Seeds

* Radu Albot (second round)
* Taro Daniel (first round)
* Matthew Ebden (second round)
* Peter Polansky (second round)
* Tatsuma Ito (second round)
* Akira Santillan (semifinals)
* Go Soeda (quarterfinals)
* John Millman (quarterfinals)

## 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 | 2 | 5 | | | | |
| | Calvin Hemery | 6 | 7 | | | | |
| | Calvin Hemery | 6 | 7 | Calvin Hemery | 6$^1$ | 7$^7$ | 1 |
| | | | | Stéphane Robert | 7$^7$ | 6$^5$ | 6 |
| | Stéphane Robert | 7$^7$ | 6 | Stéphane Robert | 7$^7$ | 6$^5$ | 6 |
| 6 | Akira Santillan | 6$^1$ | 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 |
| 1 | R Albot | 6 | 3 | | | | | | | | | | | | | | |
| | T Gabashvili | 1 | 0$^r$ | | 1 | R Albot | 7 | 2 | 0 | | | | | | | | |
| | Y Takahashi | 5 | 2 | | Q | Yo Watanuki | 5 | 6 | 6 | | | | | | | | |
| Q | Yo Watanuki | 7 | 6 | | | | | | | Q | Yo Watanuki | 7 | 3 | 5 | | | |
| | Y Uchiyama | 6 | 3 | 6$^4$ | | | | | | | S-w Kwon | 5 | 6 | 7 | | | |
| | S-w Kwon | 3 | 6 | 7$^7$ | | S-w Kwon | 7$^7$ | 6 | | | | | | | | | |
| | D-h Lee | 2 | 1 | | 5 | T Ito | 6$^4$ | 3 | | | | | | | | | |
| 5 | T Ito | 6 | 6 | | | | | | | | | | | | S-w Kwon | 2 | 5 |
| 3 | M Ebden | 4 | 6 | 7 | | | | | | | | | | | C Hemery | 6 | 7 |
| | H Moriya | 6 | 4 | 5 | 3 | M Ebden | 4 | 3 | | | | | | | | | |
| | C Hemery | 7$^9$ | 6 | | | C Hemery | 6 | 6 | | | | | | | | | |
| | A Krajicek | 6$^7$ | 2 | | | | | | | | C Hemery | 6 | 6 | | | | |
| | L Harris | 6 | 3 | 0 | | | | | | 8 | J Millman | 4 | 3 | | | | |
| Q | Sora Fukuda | 4 | 6 | 6 | Q | S Fukuda | 1 | 1 | | | | | | | | | |
| WC | Yuya Kibi | 3 | 4 | | 8 | J Millman | 6 | 6 | | | | | | | | | |
| 8 | J Millman | 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 |
| 7 | G Soeda | 6 | 6 | | | | | | | | | | | | | | |
| WC | Y Shimizu | 2 | 0 | | 7 | G Soeda | 6 | 6 | | | | | | | | | |
| | J Jung | 2 | 6 | 6 | | J Jung | 3 | 4 | | | | | | | | | |
| | O Jasika | 6 | 4 | 4 | | | | | | 7 | G Soeda | 5 | 3 | | | | |
| | S Robert | 6 | 6 | | | | | | | | S Robert | 7 | 6 | | | | |
| Q | M Matosevic | 3 | 1 | | | S Robert | 6 | 7 | | | | | | | | | |
| WC | Ken Onishi | 1 | 4 | | 4 | P Polansky | 4 | 5 | | | | | | | | | |
| 4 | P Polansky | 6 | 6 | | | | | | | | | | | | S Robert | 7$^7$ | 6 |
| 6 | A Santillan | 6 | 6 | | | | | | | | | | | 6 | A Santillan | 6$^1$ | 2 |
| WC | K Uesugi | 1 | 3 | | 6 | A Santillan | 6 | 7$^7$ | | | | | | | | | |
| SE | H Hurkacz | 6 | 6 | | SE | H Hurkacz | 3 | 6$^5$ | | | | | | | | | |
| Q | L Miedler | 4 | 4 | | | | | | | 6 | A Santillan | 6 | 6 | | | | |
| | E Leshem | 3 | 4 | | | | | | | | A Bolt | 3 | 2 | | | | |
| | A Bolt | 6 | 6 | | | A Bolt | 7 | 2 | 6 | | | | | | | | |
| | Ze Zhang | 7 | 6 | | | Ze Zhang | 5 | 6 | 2 | | | | | | | | |
| 2 | T Daniel | 5 | 1 | | | | | | | | | | | | | | |