# 2017 Open Città della Disfida – Singles

Elias Ymer was the defending champion but lost in the first round to Lukáš Rosol.
Aljaž Bedene won the title after defeating Gastão Elias 7–6$^{(7–4)}$, 6–3 in the final.

## Seeds

* Gastão Elias (final)
* Aljaž Bedene (champion)
* Norbert Gombos (first round)
* Alessandro Giannessi (quarterfinals)
* Arthur De Greef (second round)
* Jozef Kovalík (first round)
* Maximilian Marterer (quarterfinals)
* Elias Ymer (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 | Final | Final | Final | Final |
| 1 | Gastão Elias | 6 | 6 | | | | |
| | Lorenzo Giustino | 4 | 3 | | | | |
| | Lorenzo Giustino | 4 | 3 | 1 | Gastão Elias | 6$^4$ | 3 |
| | | | | 2 | Aljaž Bedene | 7$^7$ | 6 |
| WC | Lukáš Rosol | 3 | 1 | 2 | Aljaž Bedene | 7$^7$ | 6 |
| 2 | Aljaž Bedene | 6 | 6 | | | | |

### Top 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 |
| 1 | G Elias | 4 | 6 | 6 | | | | | | | | | | | | |
| WC | M Berrettini | 6 | 3 | 4 | 1 | G Elias | 6 | 6 | | | | | | | | |
| Q | S Travaglia | 6 | 6$^6$ | 6$^7$ | | S Napolitano | 4 | 2 | | | | | | | | |
| | S Napolitano | 4 | 7$^8$ | 7$^9$ | | | | | 1 | G Elias | 7 | 6 | | | | |
| Alt | K Coppejans | 6 | 6 | | | | | | Alt | K Coppejans | 5 | 3 | | | | |
| | S Tsitsipas | 4 | 4 | | Alt | K Coppejans | 6 | 6 | | | | | | | | |
| | C Lestienne | 4 | 2 | | 5 | A De Greef | 1 | 4 | | | | | | | | |
| 5 | A De Greef | 6 | 6 | | | | | | | | | | 1 | G Elias | 6 | 6 |
| 3 | N Gombos | 4 | 6$^{13}$ | | | | | | | | | | | L Giustino | 4 | 3 |
| | L Giustino | 6 | 7$^{15}$ | | | L Giustino | 6 | 6 | | | | | | | | |
| | D Brands | 6 | 6$^5$ | 2 | | F Gaio | 3 | 1 | | | | | | | | |
| | F Gaio | 4 | 7$^7$ | 6 | | | | | | L Giustino | 6 | 6 | | | | |
| | T Fabbiano | 6 | 6 | | | | | | 7 | M Marterer | 3 | 2 | | | | |
| | J Samper-Montaña | 3 | 2 | | | T Fabbiano | 2 | 5 | | | | | | | | |
| Q | L Sonego | 3 | 6 | 1 | 7 | M Marterer | 6 | 7 | | | | | | | | |
| 7 | M Marterer | 6 | 4 | 6 | | | | | | | | | | | | |

### Bottom 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 |
| 8 | E Ymer | 3 | 4 | | | | | | | | | | | | | | | |
| WC | L Rosol | 6 | 6 | | WC | L Rosol | 6 | 6 | | | | | | | | | | |
| | E López-Pérez | 6 | 4 | 7 | | E López-Pérez | 3 | 4 | | | | | | | | | | |
| | P Sousa | 1 | 6 | 5 | | | | | | WC | L Rosol | 2 | 6 | 6 | | | | |
| | N Milojević | 7 | 6 | | | | | | | 4 | A Giannessi | 6 | 3 | 3 | | | | |
| | T Lamasine | 5 | 1 | | | N Milojević | 1 | 3 | | | | | | | | | | |
| | R Bellotti | 3 | 3 | | 4 | A Giannessi | 6 | 6 | | | | | | | | | | |
| 4 | A Giannessi | 6 | 6 | | | | | | | | | | | | WC | L Rosol | 3 | 1 |
| 6/SE | J Kovalík | 1 | 1 | | | | | | | | | | | | 2 | A Bedene | 6 | 6 |
| Q | F Krajinović | 6 | 6 | | Q | F Krajinović | 6 | 3 | 4 | | | | | | | | | |
| | M Cecchinato | 6 | 6 | | | M Cecchinato | 4 | 6 | 6 | | | | | | | | | |
| Q | Jeremy Jahn | 0 | 1 | | | | | | | | M Cecchinato | 2 | 1 | | | | | |
| WC | A Pellegrino | 3 | 6 | 3 | | | | | | 2 | A Bedene | 6 | 6 | | | | | |
| WC | M Donati | 6 | 2 | 6 | WC | M Donati | 3 | 6$^5$ | | | | | | | | | | |
| | M Trungelliti | 4 | 7 | 4 | 2 | A Bedene | 6 | 7$^7$ | | | | | | | | | | |
| 2 | A Bedene | 6 | 5 | 6 | | | | | | | | | | | | | | |