| Singles | |
|---|---|
| 2017 Slovak Open | |
| Champion |  Lukáš Lacko |
| Runner-up |  Marius Copil |
| Score | 6–4, 7–6(7–4) |
Norbert Gombos was the defending champion but lost in the first round to Jerzy Janowicz.
Lukáš Lacko won the title after defeating Marius Copil 6–4, 7–6(7–4) in the final.
Mikhail Kukushkin (semifinals, retired)
Márton Fucsovics (second round)
Andreas Seppi (quarterfinals) Marius Copil (final)
Marcos Baghdatis (second round, retired)
Sergiy Stakhovsky (first round) Norbert Gombos (first round) Lukáš Lacko (champion)| Semifinals | Final | ||||||||||||
| 1 | Mikhail Kukushkin | 3 | 0r | ||||||||||
| 4 | Marius Copil | 6 | 3 | ||||||||||
| 4 | Marius Copil | 4 | 64 | ||||||||||
| 8 | Lukáš Lacko | 6 | 77 | ||||||||||
 Jürgen Zopp | 65 | 2 | |||||||||||
| 8 | Lukáš Lacko | 77 | 6 | ||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | M Kukushkin | 6 | 6 | ||||||||||||||||||||||||
| A Giannessi | 0 | 2 | 1 | M Kukushkin | 63 | 6 | 6 | ||||||||||||||||||||
| PR |  I Sijsling | 4 | 2 | Q |  N Desein | 77 | 3 | 4 | |||||||||||||||||||
| Q | N Desein | 6 | 6 | 1 | M Kukushkin | 3 | 77 | 4 | |||||||||||||||||||
 B Tomic | 77 | 6 |  J Janowicz | 6 | 62 | 0r | |||||||||||||||||||||
 R Berankis | 63 | 2 | B Tomic | 63 | 62 | ||||||||||||||||||||||
| J Janowicz | 3 | 7 | 77 | J Janowicz | 77 | 77 | |||||||||||||||||||||
| 7 | N Gombos | 6 | 5 | 65 | 1 | M Kukushkin | 3 | 0r | |||||||||||||||||||
| 4 | M Copil | 6 | 5 | 6 | 4 | M Copil | 6 | 3 | |||||||||||||||||||
| WC | Patrik Néma | 4 | 7 | 4 | 4 | M Copil | 6 | 7 | |||||||||||||||||||
| Alt |  P Krstin | 77 | 3 | 4 | WC | L Klein | 4 | 5 | |||||||||||||||||||
| WC | L Klein | 65 | 6 | 6 | 4 | M Copil | 77 | 6 | |||||||||||||||||||
| WC | A Nedovyesov | 2 | 2 | Q | K Majchrzak | 64 | 1 | ||||||||||||||||||||
| Q | K Majchrzak | 6 | 6 | Q | K Majchrzak | 4 | 6 | 6 | |||||||||||||||||||
| A Martin | 77 | 6 | A Martin | 6 | 3 | 2 | |||||||||||||||||||||
| 6 | S Stakhovsky | 63 | 3 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 5 | M Baghdatis | 6 | 6 | ||||||||||||||||||||||||
| LL | M Viola | 4 | 4 | 5 | M Baghdatis | 611 | 0r | ||||||||||||||||||||
| Q |  T Farquharson | 64 | 6 | 65 | J Zopp | 713 | 2 | ||||||||||||||||||||
| J Zopp | 77 | 4 | 77 | J Zopp | 77 | 6 | |||||||||||||||||||||
 U Ignatik | 6 | 1 | 79 | 3 | A Seppi | 64 | 3 | ||||||||||||||||||||
 V Šafránek | 2 | 6 | 67 | U Ignatik | 65 | 68 | |||||||||||||||||||||
 S Ofner | 3 | 2 | 3 | A Seppi | 77 | 710 | |||||||||||||||||||||
| 3 | A Seppi | 6 | 6 | J Zopp | 65 | 2 | |||||||||||||||||||||
| 8 | L Lacko | 6 | 6 | 8 | L Lacko | 77 | 6 | ||||||||||||||||||||
| J Kovalík | 4 | 4 | 8 | L Lacko | 611 | 6 | 6 | ||||||||||||||||||||
 F Auger-Aliassime | 6 | 6 | F Auger-Aliassime | 713 | 4 | 3 | |||||||||||||||||||||
 M Bachinger | 2 | 4 | 8 | L Lacko | 6 | 3 | 6 | ||||||||||||||||||||
 A Šetkić | 3 | 6 | 3 | Q |  F Škugor | 1 | 6 | 3 | |||||||||||||||||||
| Q | F Škugor | 6 | 2 | 6 | Q | F Škugor | 64 | 6 | 6 | ||||||||||||||||||
| WC | Tomáš Líška | 0 | 0 | 2 | M Fucsovics | 77 | 4 | 3 | |||||||||||||||||||
| 2 | M Fucsovics | 6 | 6 | ||||||||||||||||||||||||
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