# 2017 Bangkok Challenger II – Singles

Mikhail Youzhny was the defending champion but chose not to participate.
Janko Tipsarević won the title after defeating Li Zhe 6–2, 6–3 in the final.

## Seeds

* Janko Tipsarević (champion)
* Christian Garín (semifinals)
* Aslan Karatsev (first round)
* Zdeněk Kolář (first round)
* Grégoire Barrère (first round)
* Yannick Mertens (second round)
* Axel Michon (quarterfinals)
* Václav Šafránek (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 | Final |
| 1 | Janko Tipsarević | 6 | 6 | | | | | |
| Q | Daniel Altmaier | 3 | 3 | | | | | |
| Q | Daniel Altmaier | 3 | 3 | | 1 | Janko Tipsarević | 6 | 6 |
| | | | | | | Li Zhe | 2 | 3 |
| | Li Zhe | 2 | 7$^8$ | 6 | | Li Zhe | 2 | 3 |
| 2 | Christian Garín | 6 | 6$^6$ | 3 | | | | |

### 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 | J Tipsarević | 2 | 6 | 6 | | | | | | | | | | | | | |
| | E Gerasimov | 6 | 3 | 3 | 1 | J Tipsarević | 6 | 6 | | | | | | | | | |
| Q | J Wang | 3 | 6$^8$ | | | S Doumbia | 3 | 1 | | | | | | | | | |
| | S Doumbia | 6 | 7$^{10}$ | | | | | | | 1 | J Tipsarević | 6 | 6 | | | | |
| | K Krawietz | 6 | 7 | | | | | | | 7 | A Michon | 2 | 2 | | | | |
| | A Olivetti | 3 | 5 | | | K Krawietz | 6 | 6$^6$ | 3 | | | | | | | | |
| WC | Werapath Sirijatiyaporn | 1 | 1 | | 7 | A Michon | 3 | 7$^8$ | 6 | | | | | | | | |
| 7 | A Michon | 6 | 6 | | | | | | | | | | | 1 | J Tipsarević | 6 | 6 |
| 3 | A Karatsev | 6 | 1 | 3 | | | | | | | | | | Q | D Altmaier | 3 | 3 |
| | G Gigounon | 4 | 6 | 6 | | G Gigounon | 3 | 4 | | | | | | | | | |
| Q | D Altmaier | 6 | 6 | | Q | D Altmaier | 6 | 6 | | | | | | | | | |
| Q | K-y Lee | 2 | 2 | | | | | | | Q | D Altmaier | 6 | 6 | | | | |
| | Shuichi Sekiguchi | 6 | 6 | | | | | | | | S Sekiguchi | 4 | 1 | | | | |
| WC | Phassawit Burapharitta | 1 | 4 | | | S Sekiguchi | 6 | 3 | 6 | | | | | | | | |
| WC | Patcharapol Kawin | 2 | 3 | | 6 | Y Mertens | 3 | 6 | 1 | | | | | | | | |
| 6 | Y Mertens | 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 | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 5 | G Barrère | 6 | 3 | 1 | | | | | | | | | | | | | | | |
| | A Bega | 3 | 6 | 6 | | A Bega | 2 | 2 | | | | | | | | | | | |
| | Z Li | 6 | 6 | | | Z Li | 6 | 6 | | | | | | | | | | | |
| | C İlkel | 3 | 3 | | | | | | | | Z Li | 4 | 7$^{10}$ | 6 | | | | | |
| | S-w Kwon | 1 | 1 | | | | | | | | Y Maden | 6 | 6$^8$ | 3 | | | | | |
| | Y Maden | 6 | 6 | | | Y Maden | 7$^7$ | 6 | | | | | | | | | | | |
| | N Langer | 6 | 5 | 6 | | N Langer | 6$^5$ | 4 | | | | | | | | | | | |
| 4 | Z Kolář | 0 | 7 | 3 | | | | | | | | | | | | Z Li | 2 | 7$^8$ | 6 |
| 8 | V Šafránek | 4 | 0 | | | | | | | | | | | | 2 | C Garin | 6 | 6$^6$ | 3 |
| Q | S Balaji | 6 | 6 | | Q | S Balaji | 2 | 2 | | | | | | | | | | | |
| | J Zopp | 6 | 6 | | | J Zopp | 6 | 6 | | | | | | | | | | | |
| WC | Chaleechan Tanasugarn | 0 | 0 | | | | | | | | J Zopp | 3 | 6$^4$ | | | | | | |
| | N Mektić | 4 | 6 | 2 | | | | | | 2 | C Garin | 6 | 7$^7$ | | | | | | |
| | F Ferreira Silva | 6 | 3 | 6 | | F Ferreira Silva | 7$^9$ | 3 | 2 | | | | | | | | | | |
| | D Nguyen | 5 | 1 | | 2 | C Garin | 6$^7$ | 6 | 6 | | | | | | | | | | |
| 2 | C Garín | 7 | 6 | | | | | | | | | | | | | | | | |