# 2015 Tampere Open – Men's singles

David Goffin was the defending champion, but decided not to participate this year.
Tristan Lamasine won the title, defeating André Ghem in the final, 6–3, 6–2.

## Seeds

* Jarkko Nieminen (semifinals)
* Lucas Pouille (withdrew)
* Jürgen Melzer (first round)
* Andre Ghem (final)
* Jürgen Zopp (quarterfinals)
* Germain Gigounon (first round)
* Calvin Hemery (second round)
* Andreas Beck (quarterfinals, retired)
* Rui Machado (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 | Jarkko Nieminen | 7 | 6$^6$ | 5 | | | | |
| | Tristan Lamasine | 5 | 7$^8$ | 7 | | | | |
| | Tristan Lamasine | 5 | 7$^8$ | 7 | | Tristan Lamasine | 6 | 6 |
| | | | | | 4 | André Ghem | 3 | 2 |
| 4 | André Ghem | 6 | 6 | | 4 | André Ghem | 3 | 2 |
| WC | Vladimir Ivanov | 4 | 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 | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | J Nieminen | 4 | 6 | 6 | | | | | | | | | | | | | | | |
| | A Veić | 6 | 3 | 4 | 1 | J Nieminen | 6 | 6 | | | | | | | | | | | |
| Q | Anton Pavlov | 6 | 6$^{10}$ | 6 | Q | A Pavlov | 1 | 3 | | | | | | | | | | | |
| LL | Ristomatti Lanne | 4 | 7$^{12}$ | 3 | | | | | | 1 | J Nieminen | 4 | 6 | 7$^7$ | | | | | |
| Q | H Heliövaara | 6 | 7 | | | | | | | 5 | J Zopp | 6 | 3 | 6$^4$ | | | | | |
| | FF Silva | 3 | 5 | | Q | H Heliövaara | 6$^7$ | 3 | | | | | | | | | | | |
| | D Novak | 1 | 7 | 2 | 5 | J Zopp | 7$^9$ | 6 | | | | | | | | | | | |
| 5 | J Zopp | 6 | 5 | 6 | | | | | | | | | | | 1 | J Nieminen | 7 | 6$^6$ | 5 |
| 3 | J Melzer | 3 | 4 | | | | | | | | | | | | | T Lamasine | 5 | 7$^8$ | 7 |
| | T Lamasine | 6 | 6 | | | T Lamasine | 4 | 7$^7$ | 7$^9$ | | | | | | | | | | |
| | P Krstin | 6 | 6 | | | P Krstin | 6 | 6$^4$ | 6$^7$ | | | | | | | | | | |
| | R Bellotti | 3 | 2 | | | | | | | | T Lamasine | 6 | 6 | | | | | | |
| PR | J Martí | 3 | 2 | | | | | | | | J Šátral | 2 | 1 | | | | | | |
| | J Šátral | 6 | 6 | | | J Šátral | 6 | 6$^2$ | 6 | | | | | | | | | | |
| PR | J Checa-Calvo | 3 | 4 | | 7 | C Hemery | 4 | 7$^7$ | 2 | | | | | | | | | | |
| 7 | C Hemery | 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 | Semifinals | Semifinals | Semifinals | Semifinals |
| 6 | G Gigounon | 4 | 1 | | | | | | | | | | | | | |
| | M Hamou | 6 | 6 | | | M Hamou | 7$^7$ | 6 | | | | | | | | |
| WC | M Kontinen | 6 | 7$^7$ | | WC | M Kontinen | 6$^2$ | 2 | | | | | | | | |
| | G Mina | 3 | 6$^5$ | | | | | | | M Hamou | 6$^6$ | 1 | | | | |
| | A Musialek | 3 | 6 | 4 | | | | | 4 | A Ghem | 7$^8$ | 6 | | | | |
| | H Laaksonen | 6 | 4 | 6 | | H Laaksonen | 3 | 3 | | | | | | | | |
| | J Eysseric | 4 | 5 | | 4 | A Ghem | 6 | 6 | | | | | | | | |
| 4 | A Ghem | 6 | 7 | | | | | | | | | | 4 | A Ghem | 6 | 6 |
| 8 | A Beck | 6 | 5 | 6 | | | | | | | | | WC | V Ivanov | 4 | 3 |
| Q | A Michon | 1 | 7 | 4 | 8 | A Beck | 7 | 6 | | | | | | | | |
| | T Brkić | 6$^3$ | 3 | | WC | P Niklas-Salminen | 5 | 3 | | | | | | | | |
| WC | P Niklas-Salminen | 7$^7$ | 6 | | | | | | 8 | A Beck | 7$^7$ | 2$^r$ | | | | |
| WC | H Sillanpää | 2 | 6 | 6$^5$ | | | | | WC | V Ivanov | 6$^2$ | 5 | | | | |
| Q | Alexander Vasilenko | 6 | 3 | 7$^7$ | Q | A Vasilenko | 5 | 6$^2$ | | | | | | | | |
| WC | V Ivanov | 2 | 6 | 6 | WC | V Ivanov | 7 | 7$^7$ | | | | | | | | |
| 9 | R Machado | 6 | 4 | 2 | | | | | | | | | | | | |