| Singles | |
|---|---|
| 2017 Sparkassen ATP Challenger | |
| Champion |  Lorenzo Sonego |
| Runner-up |  Tim Pütz |
| Final score | 6–4, 6–4 |
Stefano Napolitano was the defending champion but lost in the second round to Matteo Donati.
Lorenzo Sonego won the title after defeating Tim Pütz 6–4, 6–4 in the final.
Marius Copil (withdrew)
Norbert Gombos (first round) Andreas Seppi (quarterfinals)
Pierre-Hugues Herbert (semifinals)
Márton Fucsovics (first round) Dustin Brown (second round) Oscar Otte (quarterfinals)
Sebastian Ofner (second round)| Semifinals | Final | ||||||||||||
| Q | Tim Pütz | 62 | 6 | 77 | |||||||||
| 4 | Pierre-Hugues Herbert | 77 | 1 | 65 | |||||||||
| Q | Tim Pütz | 4 | 4 | ||||||||||
| WC | Lorenzo Sonego | 6 | 6 | ||||||||||
| WC | Matteo Donati | 66 | 61 | ||||||||||
| WC | Lorenzo Sonego | 78 | 77 | ||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| LL | A Arnaboldi | 77 | 6 | ||||||||||||||||||||||||
| WC | Patrick Prader | 65 | 2 | LL | A Arnaboldi | 4 | 3 | ||||||||||||||||||||
 V Galović | 6 | 3 | 6 | V Galović | 6 | 6 | |||||||||||||||||||||
| Jeremy Jahn | 3 | 6 | 3 | V Galović | 4 | 77 | 2 | ||||||||||||||||||||
| Q | T Pütz | 6 | 6 | Q | T Pütz | 6 | 61 | 6 | |||||||||||||||||||
| Q | K Krawietz | 1 | 1 | Q | T Pütz | 6 | 63 | 6 | |||||||||||||||||||
| M Bourgue | 6 | 1 | 3 | 8 | S Ofner | 3 | 77 | 2 | |||||||||||||||||||
| 8 | S Ofner | 1 | 6 | 6 | Q | T Pütz | 62 | 6 | 77 | ||||||||||||||||||
| 4 | P-H Herbert | 6 | 6 | 4 | P-H Herbert | 77 | 1 | 65 | |||||||||||||||||||
 L Grigelis | 3 | 4 | 4 | P-H Herbert | 77 | 6 | |||||||||||||||||||||
| K de Schepper | 77 | 6 | K de Schepper | 65 | 4 | ||||||||||||||||||||||
| R Berankis | 63 | 4 | 4 | P-H Herbert | 77 | 3 | 6 | ||||||||||||||||||||
| PR |  I Sijsling | 1 | 4 | Q | M Sieber | 63 | 6 | 3 | |||||||||||||||||||
| Q | Marc Sieber | 6 | 6 | Q | M Sieber | 2 | 77 | 77 | |||||||||||||||||||
| LL |  E Leshem | 3 | 5 | 6 | D Brown | 6 | 63 | 65 | |||||||||||||||||||
| 6 | D Brown | 6 | 7 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 5 | M Fucsovics | 6 | 4 | 4 | |||||||||||||||||||||||
| S Napolitano | 4 | 6 | 6 | S Napolitano | 6 | 4 | 5 | ||||||||||||||||||||
 N Kuhn | 77 | 63 | 4 | WC | M Donati | 4 | 6 | 7 | |||||||||||||||||||
| WC | M Donati | 64 | 77 | 6 | WC | M Donati | 77 | 77 | |||||||||||||||||||
| S Caruso | 6 | 77 | 3 | A Seppi | 65 | 65 | |||||||||||||||||||||
| P Martínez | 3 | 61 | S Caruso | 78 | 4 | 4 | |||||||||||||||||||||
 J Janowicz | 2 | 2 | 3 | A Seppi | 66 | 6 | 6 | ||||||||||||||||||||
| 3 | A Seppi | 6 | 6 | WC | M Donati | 66 | 61 | ||||||||||||||||||||
| 7 | O Otte | 6 | 4 | 77 | WC | L Sonego | 78 | 77 | |||||||||||||||||||
| WC | F Gaio | 4 | 6 | 62 | 7 | O Otte | 62 | 6 | 6 | ||||||||||||||||||
| B Zapata Miralles | 6 | 6 | B Zapata Miralles | 77 | 1 | 4 | |||||||||||||||||||||
| S Robert | 3 | 0 | 7 | O Otte | 1 | 4 | |||||||||||||||||||||
| Q | M Viola | 77 | 5 | 7 | WC | L Sonego | 6 | 6 | |||||||||||||||||||
| T Lamasine | 64 | 7 | 5 | Q | M Viola | 4 | 1 | ||||||||||||||||||||
| WC | L Sonego | 2 | 7 | 6 | WC | L Sonego | 6 | 6 | |||||||||||||||||||
| 2 | N Gombos | 6 | 5 | 4 | |||||||||||||||||||||||
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