# 2015 Hua Hin Championships – Men's singles

Yūichi Sugita won the title, defeating Stéphane Robert in the final 6–2, 1–6, 6–3.

## Seeds

* Lu Yen-hsun (quarterfinals)
* Evgeny Donskoy (second round)
* Yuki Bhambri (first round, retired)
* Dudi Sela (first round)
* Tatsuma Ito (semifinals)
* Adrián Menéndez-Maceiras (first round)
* Jürgen Zopp (semifinals)
* Yoshihito Nishioka (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 | Semifinals | Final | Final | Final | Final | Final |
| 7 | Jürgen Zopp | 5 | 6 | 3 | | | | | |
| | Yūichi Sugita | 7 | 2 | 6 | | | | | |
| | Yūichi Sugita | 7 | 2 | 6 | | Yūichi Sugita | 6 | 1 | 6 |
| | | | | | Q | Stéphane Robert | 2 | 6 | 3 |
| 5 | Tatsuma Ito | 4 | 2 | | Q | Stéphane Robert | 2 | 6 | 3 |
| Q | Stéphane Robert | 6 | 6 | | | | | | |

### Top half

| 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 |
| 1 | Y-h Lu | 6 | 6 | | | | | | | | | | | | | | | |
| | T-h Yang | 2 | 1 | 1 | Y-h Lu | 7$^7$ | 6 | | | | | | | | | | | |
| | D Wu | 6 | 7$^7$ | | D Wu | 6$^3$ | 3 | | | | | | | | | | | |
| Q | Laurent Rochette | 1 | 6$^1$ | | | | | | 1 | Y-h Lu | 6 | 6$^3$ | 6$^3$ | | | | | |
| | Y Mertens | 6 | 6 | | | | | | 7 | J Zopp | 0 | 7$^7$ | 7$^7$ | | | | | |
| | T Lamasine | 4 | 1 | | Y Mertens | 7 | 5 | 6$^2$ | | | | | | | | | | |
| | T Fabbiano | 1 | 0 | 7 | J Zopp | 5 | 7 | 7$^7$ | | | | | | | | | | |
| 7 | J Zopp | 6 | 6 | | | | | | | | | | | 7 | J Zopp | 5 | 6 | 3 |
| 3 | Y Bhambri | 0 | 0$^r$ | | | | | | | | | | | | Y Sugita | 7 | 2 | 6 |
| | Y Sugita | 6 | 0 | | Y Sugita | 6 | 6 | | | | | | | | | | | |
| WC | W Sornbutnark | 6$^4$ | 3 | WC | P Isaro | 1 | 2 | | | | | | | | | | | |
| WC | P Isaro | 7$^7$ | 6 | | | | | | | Y Sugita | 7$^7$ | 7 | | | | | | |
| | P Gojowczyk | 6 | 6 | | | | | | 8 | Y Nishioka | 6$^4$ | 5 | | | | | | |
| | Z Zhang | 4 | 3 | | P Gojowczyk | 4 | 6$^4$ | | | | | | | | | | | |
| | A Kudryavtsev | 2 | 6$^5$ | 8 | Y Nishioka | 6 | 7$^7$ | | | | | | | | | | | |
| 8 | Y Nishioka | 6 | 7$^7$ | | | | | | | | | | | | | | | |

### 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 |
| 5 | T Ito | 6 | 6 | | | | | | | | | | | | | | | |
| Q | J Navasirisomboon | 2 | 3 | | 5 | T Ito | 6 | 6 | | | | | | | | | | |
| | G Gigounon | 4 | 4 | | WC | P Chatpatcharoen | 3 | 1 | | | | | | | | | | |
| WC | Puriwat Chatpatcharoen | 6 | 6 | | | | | | | 5 | T Ito | 7$^8$ | 6 | | | | | |
| Q | R Ghedin | 6 | 6 | | | | | | | | N Langer | 6$^6$ | 1 | | | | | |
| WC | K Wachiramanowong | 0 | 3 | | Q | R Ghedin | 0 | 3 | | | | | | | | | | |
| | N Langer | 7$^7$ | 7$^7$ | | | N Langer | 6 | 6 | | | | | | | | | | |
| 4 | D Sela | 6$^4$ | 6$^2$ | | | | | | | | | | | | 5 | T Ito | 4 | 2 |
| 6 | A Menéndez-Maceiras | 5 | 6 | 3 | | | | | | | | | | | Q | S Robert | 6 | 6 |
| PR | A Weintraub | 7 | 3 | 6 | PR | A Weintraub | 6$^3$ | 6$^{10}$ | | | | | | | | | | |
| | H Moriya | 7 | 3 | | | H Moriya | 7$^7$ | 7$^{12}$ | | | | | | | | | | |
| | Y Bai | 5 | 0$^r$ | | | | | | | | H Moriya | 1 | 6 | 1 | | | | |
| Q | S Robert | 6 | 6 | | | | | | | Q | S Robert | 6 | 4 | 6 | | | | |
| LL | T Matsui | 1 | 1 | | Q | S Robert | 4 | 6 | 6 | | | | | | | | | |
| | T Chen | 1 | 1$^r$ | | 2 | E Donskoy | 6 | 1 | 4 | | | | | | | | | |
| 2 | E Donskoy | 6 | 2 | | | | | | | | | | | | | | | |