# 2015 Città di Caltanissetta – Singles

Pablo Carreño Busta was the defending champion, but he did not participate.
Elias Ymer won the title, defeating Bjorn Fratangelo in the final, 6–3, 6–2.

## Seeds

* Albert Ramos Viñolas (semifinals)
* Paolo Lorenzi (withdrew)
* Alejandro González (quarterfinals)
* Guido Pella (quarterfinals)
* Máximo González (second round)
* Marco Cecchinato (semifinals)
* Bjorn Fratangelo (final)
* Gastão Elias (quarterfinals)
* Guilherme Clezar (quarterfinals)

## 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 | Semifinals | Final | Final | Final | Final |
| 1 | Albert Ramos Viñolas | 6$^9$ | 6 | 4 | | | | |
| | Elias Ymer | 7$^{11}$ | 3 | 6 | | | | |
| | Elias Ymer | 7$^{11}$ | 3 | 6 | | Elias Ymer | 6 | 6 |
| | | | | | 7 | Bjorn Fratangelo | 3 | 2 |
| 7 | Bjorn Fratangelo | 4 | 6 | 6 | 7 | Bjorn Fratangelo | 3 | 2 |
| 6 | Marco Cecchinato | 6 | 3 | 3 | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | A Ramos Viñolas | 6 | 6 | | | | | | | | | | | | | | | |
| Q | Q Halys | 2 | 3 | | 1 | A Ramos Viñolas | 6 | 6 | | | | | | | | | | |
| | R Marcora | 1 | 5 | | | R Carballés Baena | 4 | 0 | | | | | | | | | | |
| | R Carballés Baena | 6 | 7 | | | | | | 1 | A Ramos Viñolas | 6 | 6 | | | | | | |
| WC | F Gaio | 7 | 6 | | | | | | 8 | G Elias | 1 | 2 | | | | | | |
| | J Huta Galung | 5 | 3 | | WC | F Gaio | 1 | 5 | | | | | | | | | | |
| | V Hănescu | 6 | 4 | 3 | 8 | G Elias | 6 | 7 | | | | | | | | | | |
| 8 | G Elias | 3 | 6 | 6 | | | | | | | | | | 1 | A Ramos Viñolas | 6$^9$ | 6 | 4 |
| 4 | G Pella | 6 | 6 | | | | | | | | | | | | E Ymer | 7$^{11}$ | 3 | 6 |
| WC | S Travaglia | 4 | 0 | | 4 | G Pella | 6 | 7$^{11}$ | | | | | | | | | | |
| | M Delić | 6$^1$ | 1 | | | A Arnaboldi | 2 | 6$^9$ | | | | | | | | | | |
| | A Arnaboldi | 7$^7$ | 6 | | | | | | 4 | G Pella | 3 | 6 | 5 | | | | | |
| | G Andreozzi | 6$^4$ | 4 | | | | | | | E Ymer | 6 | 3 | 7 | | | | | |
| | E Ymer | 7$^7$ | 6 | | | E Ymer | 7$^7$ | 7$^8$ | | | | | | | | | | |
| Q | N Barrientos | 2 | 3 | | 5 | M González | 6$^1$ | 6$^6$ | | | | | | | | | | |
| 5 | M González | 6 | 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 | Semifinals |
| 7 | B Fratangelo | 7$^8$ | 7$^7$ | | | | | | | | | | | | | | | | |
| | C Garin | 6$^6$ | 6$^4$ | | 7 | B Fratangelo | 3 | 6 | 6 | | | | | | | | | | |
| | D Novikov | 4 | 7 | 7 | | D Novikov | 6 | 3 | 2 | | | | | | | | | | |
| WC | S Caruso | 6 | 5 | 5 | | | | | | 7 | B Fratangelo | 3 | 7 | 6 | | | | | |
| LL | D Beretta | 6 | 4 | 6 | | | | | | 3 | A González | 6 | 5 | 1 | | | | | |
| Q | JI Londero | 4 | 6 | 3 | LL | D Beretta | 6 | 3 | 1 | | | | | | | | | | |
| | Y Mertens | 2 | 3 | | 3 | A González | 3 | 6 | 6 | | | | | | | | | | |
| 3 | A González | 6 | 6 | | | | | | | | | | | | 7 | B Fratangelo | 4 | 6 | 6 |
| 6 | M Cecchinato | 6 | 7 | | | | | | | | | | | | 6 | M Cecchinato | 6 | 3 | 3 |
| | T-h Yang | 3 | 5 | | 6 | M Cecchinato | 6 | 6 | | | | | | | | | | | |
| | J Hernández | 4 | 6 | 3 | WC | G Quinzi | 4 | 3 | | | | | | | | | | | |
| WC | G Quinzi | 6 | 3 | 6 | | | | | | 6 | M Cecchinato | 6 | 6 | | | | | | |
| | M Hamou | 4 | 6 | 4 | | | | | | 9 | G Clezar | 0 | 0 | | | | | | |
| | A Ungur | 6 | 3 | 6 | | A Ungur | 4 | 6$^6$ | | | | | | | | | | | |
| Q | G Lama | 7$^7$ | 2 | 2 | 9 | G Clezar | 6 | 7$^8$ | | | | | | | | | | | |
| 9 | G Clezar | 6$^5$ | 6 | 6 | | | | | | | | | | | | | | | |