| Singles | |
|---|---|
| 2017 Tilia Slovenia Open | |
| Champion |  Sergiy Stakhovsky |
| Runner-up |  Matteo Berrettini |
| Score | 6–7(4–7), 7–6(8–6), 6–3 |
Florian Mayer was the defending champion but chose not to defend his title.
Sergiy Stakhovsky won the title after defeating Matteo Berrettini 6–7(4–7), 7–6(8–6), 6–3 in the final.
Blaž Kavčič (second round)
Peter Gojowczyk (first round, retired) Sergiy Stakhovsky (champion)
Lukáš Lacko (first round, retired)
Egor Gerasimov (first round)
Filip Krajinović (quarterfinals)
Adrián Menéndez Maceiras (second round) Jozef Kovalík (first round)| Semifinals | Final | ||||||||||||
 Aldin Šetkić | 2 | 4 | |||||||||||
| Matteo Berrettini | 6 | 6 | |||||||||||
| Matteo Berrettini | 77 | 66 | 3 | ||||||||||
| 3 | Sergiy Stakhovsky | 64 | 78 | 6 | |||||||||
| 3 | Sergiy Stakhovsky | 4 | 6 | 7 | |||||||||
 Stefanos Tsitsipas | 6 | 4 | 5 | ||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | B Kavčič | 6 | 6 | ||||||||||||||||||||||||
| Q |  E Karlovskiy | 4 | 4 | 1 | B Kavčič | 3 | 66 | ||||||||||||||||||||
| WC | T Kočevar-Dešman | 2 | 77 | 4 | A Šetkić | 6 | 78 | ||||||||||||||||||||
| A Šetkić | 6 | 64 | 6 | A Šetkić | 64 | 6 | 6 | ||||||||||||||||||||
| Q |  Lj Čelebić | 3 | 3 | P Martínez | 77 | 4 | 4 | ||||||||||||||||||||
| R Ortega Olmedo | 6 | 6 | R Ortega Olmedo | 6 | 0 | 3 | |||||||||||||||||||||
| P Martínez | 1 | 6 | 7 | P Martínez | 4 | 6 | 6 | ||||||||||||||||||||
| 8 | J Kovalík | 6 | 3 | 5 | A Šetkić | 2 | 4 | ||||||||||||||||||||
| 4 | L Lacko | 4 | 0r | M Berrettini | 6 | 6 | |||||||||||||||||||||
| WC | Jaime Fermosell Delgado | 6 | 3 | WC | J Fermosell Delgado | 3 | 2 | ||||||||||||||||||||
 D Popko | 3 | 3 | I Ivashka | 6 | 6 | ||||||||||||||||||||||
| I Ivashka | 6 | 6 | I Ivashka | 4 | 4 | ||||||||||||||||||||||
| L Giustino | 6 | 3 | 4 | M Berrettini | 6 | 6 | |||||||||||||||||||||
| M Berrettini | 3 | 6 | 6 | M Berrettini | 78 | 6 | |||||||||||||||||||||
 A Balázs | 5 | 0 | 7 | A Menéndez Maceiras | 66 | 1 | |||||||||||||||||||||
| 7 | A Menéndez Maceiras | 7 | 6 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 6 | F Krajinović | 6 | 6 | ||||||||||||||||||||||||
 L Rosol | 4 | 2 | 6 | F Krajinović | 6 | 6 | |||||||||||||||||||||
| G Žemlja | 6 | 6 | G Žemlja | 2 | 3 | ||||||||||||||||||||||
| WC | Grega Boh | 1 | 2 | 6 | F Krajinović | 1 | 6 | 3 | |||||||||||||||||||
| Q |  A Olivetti | 6 | 6 | 3 | S Stakhovsky | 6 | 3 | 6 | |||||||||||||||||||
| SE | G Granollers | 4 | 3 | Q | A Olivetti | 2 | 2 | ||||||||||||||||||||
| Alt | M Viola | 63 | 2 | 3 | S Stakhovsky | 6 | 6 | ||||||||||||||||||||
| 3 | S Stakhovsky | 77 | 6 | 3 | S Stakhovsky | 4 | 6 | 7 | |||||||||||||||||||
| 5 | E Gerasimov | 5 | 3 | S Tsitsipas | 6 | 4 | 5 | ||||||||||||||||||||
| L Vanni | 7 | 6 | L Vanni | 6 | 3 | 4 | |||||||||||||||||||||
 A de Minaur | 2 | 3 | S Tsitsipas | 3 | 6 | 6 | |||||||||||||||||||||
| S Tsitsipas | 6 | 6 | S Tsitsipas | 77 | 78 | ||||||||||||||||||||||
| WC | Sven Lah | 6 | 6 | Q |  F Škugor | 63 | 66 | ||||||||||||||||||||
| R Ramírez Hidalgo | 4 | 4 | WC | S Lah | 62 | 3 | |||||||||||||||||||||
| Q | F Škugor | 6 | 3 | Q | F Škugor | 77 | 6 | ||||||||||||||||||||
| 2 | P Gojowczyk | 3 | 1r | ||||||||||||||||||||||||
Marcos Baghdatis was the defending champion, but chose not to participate that year.
Sergiy Stakhovsky was the defending champion, but lost in the first round to Benjamin Becker.
Mikhail Kukushkin defeated 1st seed Mikhail Youzhny 6–3, 7–6(7–2) to win this tournament.
John Isner successfully defended his title by beating Tomáš Berdych 3–6, 6–4, 7–6(11–9) in the final.
Andy Murray was the defending champion, but lost to Milos Raonic in the semifinals.
Eighth-seeded Kei Nishikori won the title beating Milos Raonic in the final 7–6(7–5), 3–6, 6–0, and in doing so became the first home grown winner of the title since Toshiro Sakai in 1972.
Juan Martín del Potro was the defending champion, but lost to Gilles Simon in the quarterfinals.
Jo-Wilfried Tsonga won the title, defeating Tomáš Berdych in the final, 3–6, 7–6(8–6), 6–4.
Philipp Kohlschreiber was the defending champion but lost in the final to Tommy Haas, 3–6, 6–7(3–7).
Nicolás Almagro was the two-time defending champion but decided not to participate.
Albert Montañés won the title, defeating Gaël Monfils in the final, 6–0, 7–6.(7–3)
Juan Martín del Potro was the defending champion but lost in the quarterfinals to Ernests Gulbis.
Tomáš Berdych won the title, defeating Marin Čilić in the final, 6–4, 6–2.
Alex Kuznetsov was the defending champion but decided not to participate.
Viktor Troicki was the defending champion and successfully defended his title, defeating Grigor Dimitrov in the final, 2–6, 6–1, 7–6(9–7).
Rafael Nadal was the defending champion, but chose not to participate this year.
Roger Federer was the three-time defending champion, but lost in the semifinals to Alexander Zverev.
Nick Kyrgios was the defending champion, but lost in the semifinals to Jo-Wilfried Tsonga.
Federico Delbonis was the defending champion but retired in the first round against Reda El Amrani.
Jo-Wilfried Tsonga was the defending champion, but withdrew before the tournament began.
Márton Fucsovics was the defending champion but chose not to defend his title.
Jo-Wilfried Tsonga was the defending champion, but lost in the second round to Gaël Monfils.
Karen Khachanov was the defending champion, but withdrew before the tournament began.
Marco Cecchinato was the defending champion, but withdrew due to illness.
Jo-Wilfried Tsonga was the defending champion, but chose not to participate this year.