| Men's singles | |
|---|---|
| 2018 Tampere Open | |
| Champion |  Tallon Griekspoor |
| Runner-up |  Juan Ignacio Londero |
| Score | 6–3, 2–6, 6–3 |
Calvin Hemery was the defending champion but chose not to defend his title.
Tallon Griekspoor won the title after defeating Juan Ignacio Londero 6–3, 2–6, 6–3 in the final.
Hugo Dellien (semifinals)
Pedro Sousa (first round) Juan Ignacio Londero (final) Marco Trungelliti (quarterfinals)
Kamil Majchrzak (quarterfinals) Tallon Griekspoor (champion)
Antoine Hoang (quarterfinals) Gleb Sakharov (first round)| Semifinals | Final | ||||||||||||
| 1 | Hugo Dellien | 4 | 2 | ||||||||||
| 3 | Juan Ignacio Londero | 6 | 6 | ||||||||||
| 3 | Juan Ignacio Londero | 3 | 6 | 3 | |||||||||
| 6 | Tallon Griekspoor | 6 | 2 | 6 | |||||||||
| 6 | Tallon Griekspoor | 6 | 7 | ||||||||||
| Q | Tristan Lamasine | 4 | 5 | ||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | H Dellien | 6 | 4 | ||||||||||||||||||||||||
| WC |  K Raisma | 3 | 1r | 1 | H Dellien | 6 | 7 | ||||||||||||||||||||
| Q | J Sels | 6 | 6 | Q | J Sels | 4 | 5 | ||||||||||||||||||||
| A Collarini | 4 | 3 | 1 | H Dellien | 65 | 6 | 6 | ||||||||||||||||||||
 C Gómez-Herrera | 2r | 5 | K Majchrzak | 77 | 3 | 1 | |||||||||||||||||||||
| PR |  R Bellotti | 3 | PR | R Bellotti | 0 | 1 | |||||||||||||||||||||
| Patricio Heras | 1 | 4 | 5 | K Majchrzak | 6 | 6 | |||||||||||||||||||||
| 5 | K Majchrzak | 6 | 6 | 1 | H Dellien | 4 | 2 | ||||||||||||||||||||
| 3 | JI Londero | 6 | 7 | 3 | JI Londero | 6 | 6 | ||||||||||||||||||||
| R Ortega Olmedo | 1 | 5 | 3 | JI Londero | 3 | 6 | 6 | ||||||||||||||||||||
| Q | R Marcora | 6 | 6 | Q | R Marcora | 6 | 4 | 2 | |||||||||||||||||||
| WC |  E Ruusuvuori | 3 | 4 | 3 | JI Londero | 77 | 6 | ||||||||||||||||||||
| WC | P Niklas-Salminen | 2 | 65 | 7 | A Hoang | 65 | 4 | ||||||||||||||||||||
| Q |  I Gakhov | 6 | 77 | Q | I Gakhov | 5 | 6 | 1 | |||||||||||||||||||
| WC | H Heliövaara | 0 | 4 | 7 | A Hoang | 7 | 2 | 6 | |||||||||||||||||||
| 7 | A Hoang | 6 | 6 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 6 | T Griekspoor | 6 | 6 | ||||||||||||||||||||||||
| G Blancaneaux | 1 | 3 | 6 | T Griekspoor | 6 | 6 | |||||||||||||||||||||
 M Cuevas | 6 | 4 | 6 | M Cuevas | 4 | 4 | |||||||||||||||||||||
| P Cachin | 3 | 6 | 3 | 6 | T Griekspoor | 6 | 6 | ||||||||||||||||||||
| SE |  K Coppejans | 6 | 6 | 4 | M Trungelliti | 3 | 3 | ||||||||||||||||||||
 J Souza | 3 | 4 | SE | K Coppejans | 65 | 77 | 5 | ||||||||||||||||||||
 C İlkel | 6 | 3 | 4 | 4 | M Trungelliti | 77 | 64 | 7 | |||||||||||||||||||
| 4 | M Trungelliti | 3 | 6 | 6 | 6 | T Griekspoor | 6 | 7 | |||||||||||||||||||
| 8 | G Sakharov | 61 | 2 | Q | T Lamasine | 4 | 5 | ||||||||||||||||||||
| F Baldi | 77 | 6 | F Baldi | 4 | 5 | ||||||||||||||||||||||
| M Vilella Martínez | 3 | 3r | Q | T Lamasine | 6 | 7 | |||||||||||||||||||||
| Q | T Lamasine | 6 | 4 | Q | T Lamasine | 77 | 6 | ||||||||||||||||||||
| N Kuhn | 65 | 1 | T de Bakker | 62 | 1 | ||||||||||||||||||||||
| T de Bakker | 77 | 6 | T de Bakker | 6 | 3 | 6 | |||||||||||||||||||||
| E Benchetrit | 6 | 6 | E Benchetrit | 4 | 6 | 1 | |||||||||||||||||||||
| 2 | P Sousa | 3 | 2 | ||||||||||||||||||||||||
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