# 2017 Hua Hin Championships – Men's singles

Yūichi Sugita was the defending champion but chose not to defend his title.
John Millman won the title after defeating Andrew Whittington 6–2, 6–2 in the final.

## Seeds

* Matthew Ebden (quarterfinals)
* Peter Polansky (first round)
* Akira Santillan (second round, retired)
* Tatsuma Ito (semifinals)
* Nikola Milojević (second round, retired)
* Go Soeda (semifinals)
* Kwon Soon-woo (quarterfinals)
* John Millman (champion)

## 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 |
| 6 | Go Soeda | 3 | 3 | | | | |
| | Andrew Whittington | 6 | 6 | | | | |
| | Andrew Whittington | 6 | 6 | | Andrew Whittington | 2 | 2 |
| | | | | 8 | John Millman | 6 | 6 |
| 4 | Tatsuma Ito | 6$^2$ | 2 | 8 | John Millman | 6 | 6 |
| 8 | John Millman | 7$^7$ | 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 | Semifinals |
| 1 | M Ebden | 2 | 6 | 6 | | | | | | | | | | | | | | |
| WC | P Isaro | 6 | 3 | 1 | 1 | M Ebden | 6 | 6 | | | | | | | | | | |
| Q | M Matosevic | 7$^7$ | 6 | | Q | M Matosevic | 3 | 2 | | | | | | | | | | |
| | Y Takahashi | 6$^5$ | 4 | | | | | | | 1 | M Ebden | 4 | 5 | | | | | |
| WC | J Navasirisomboon | 1 | 2 | | | | | | | 6 | G Soeda | 6 | 7 | | | | | |
| | A Krajicek | 6 | 6 | | | A Krajicek | 6 | 1 | 2 | | | | | | | | | |
| | D Kelly | 6 | 3 | 2 | 6 | G Soeda | 4 | 6 | 6 | | | | | | | | | |
| 6 | G Soeda | 4 | 6 | 6 | | | | | | | | | | | 6 | G Soeda | 3 | 3 |
| 3 | A Santillan | 6 | 6 | | | | | | | | | | | | | A Whittington | 6 | 6 |
| WC | Congsup Congcar | 2 | 2 | | 3 | A Santillan | 3$^r$ | | | | | | | | | | | |
| | E Leshem | 6 | 6 | | | E Leshem | 5 | | | | | | | | | | | |
| | T Gabashvili | 3 | 4 | | | | | | | | E Leshem | 6 | 4 | 3 | | | | |
| | A Whittington | 7$^7$ | 6 | | | | | | | | A Whittington | 1 | 6 | 6 | | | | |
| | A Bolt | 6$^3$ | 4 | | | A Whittington | 4 | 6 | 1 | | | | | | | | | |
| Q | H Moriya | 3 | 1 | | 5 | N Milojević | 6 | 1 | 0$^r$ | | | | | | | | | |
| 5 | N Milojević | 6 | 6 | | | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 7 | S-w Kwon | 7$^7$ | 6 | | | | | | | | | | | | | | |
| WC | W Trongcharoenchaikul | 6$^2$ | 2 | | 7 | S-w Kwon | 6 | 6 | | | | | | | | | |
| | D Petrović | 6$^3$ | 3 | | | R Statham | 2 | 4 | | | | | | | | | |
| | R Statham | 7$^7$ | 6 | | | | | | 7 | S-w Kwon | 6 | 4 | 4 | | | | |
| | O Jasika | 3 | 2 | | | | | | 4 | T Ito | 1 | 6 | 6 | | | | |
| | M Banes | 6 | 6 | | | M Banes | 1 | 6$^2$ | | | | | | | | | |
| | B Mousley | 6$^4$ | 6$^6$ | | 4 | T Ito | 6 | 7$^7$ | | | | | | | | | |
| 4 | T Ito | 7$^7$ | 7$^8$ | | | | | | | | | | | 4 | T Ito | 6$^2$ | 2 |
| 8 | J Millman | 6 | 6 | | | | | | | | | | | 8 | J Millman | 7$^7$ | 6 |
| SE | H Hurkacz | 4 | 3 | | 8 | J Millman | 4 | | | | | | | | | | |
| | M Purcell | 7$^{12}$ | 6 | | | M Purcell | 0$^r$ | | | | | | | | | | |
| Q | Tobias Simon | 6$^{10}$ | 3 | | | | | | 8 | J Millman | 6 | 6 | | | | | |
| | A Vatutin | 6 | 6$^2$ | 6 | | | | | | A Vatutin | 2 | 0 | | | | | |
| | Y Uchiyama | 3 | 7$^7$ | 4 | | A Vatutin | 6 | 6 | | | | | | | | | |
| Q | S Robert | 4 | 7$^7$ | 6 | Q | S Robert | 2 | 3 | | | | | | | | | |
| 2 | P Polansky | 6 | 6$^1$ | 4 | | | | | | | | | | | | | |