# 2018 Città di Caltanissetta – Singles

Paolo Lorenzi was the defending champion but lost in the first round to Alejandro Davidovich Fokina.
Jaume Munar won the title after defeating Matteo Donati 6–2, 7–6$^{(7–2)}$ in the final.

## Seeds

* Paolo Lorenzi (first round)
* Pablo Cuevas (quarterfinals)
* Jiří Veselý (quarterfinals)
* Taro Daniel (withdrew)
* Laslo Đere (first round)
* Guido Andreozzi (first round)
* Thiago Monteiro (first round)
* Stefano Travaglia (withdrew)

## 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 |
| Jaume Munar | 3 | 7 | 7$^8$ | | | |
| Dennis Novak | 6 | 5 | 6$^6$ | | | |
| Dennis Novak | 6 | 5 | 6$^6$ | Jaume Munar | 6 | 7$^7$ |
| | | | | Matteo Donati | 2 | 6$^2$ |
| Matteo Donati | 0 | 6 | 6 | Matteo Donati | 2 | 6$^2$ |
| Attila Balázs | 6 | 4 | 4 | | | |

### Top 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 |
| 1 | P Lorenzi | 4 | 0 | | | | | | | | | | | | | | | |
| WC | A Davidovich Fokina | 6 | 6 | | WC | A Davidovich Fokina | 3 | 7 | 6 | | | | | | | | | |
| | V Estrella Burgos | 3 | 2 | | | Z Kolář | 6 | 5 | 3 | | | | | | | | | |
| | Z Kolář | 6 | 6 | | | | | | | WC | A Davidovich Fokina | 2 | 1 | | | | | |
| | R Olivo | 2 | 0$^r$ | | | | | | | | J Munar | 6 | 6 | | | | | |
| | F Bagnis | 6 | 4 | | | F Bagnis | 6 | 2 | 2 | | | | | | | | | |
| | J Munar | 0 | 6 | 6 | | J Munar | 4 | 6 | 6 | | | | | | | | | |
| 5 | L Đere | 6 | 2 | 4 | | | | | | | | | | | J Munar | 3 | 7 | 7$^8$ |
| 3 | J Veselý | 6 | 5 | 7$^7$ | | | | | | | | | | | D Novak | 6 | 5 | 6$^6$ |
| WC | F Baldi | 4 | 7 | 6$^4$ | 3 | J Veselý | 4 | 6 | 6 | | | | | | | | | |
| Q | F Gaio | 6 | 6 | | Q | F Gaio | 6 | 2 | 4 | | | | | | | | | |
| Q | M Bortolotti | 2 | 1 | | | | | | | 3 | J Veselý | 6 | 6$^4$ | 6$^4$ | | | | |
| WC | GM Moroni | 7$^8$ | 2 | 6$^4$ | | | | | | | D Novak | 3 | 7$^7$ | 7$^7$ | | | | |
| | D Novak | 6$^6$ | 6 | 7$^7$ | | D Novak | 6 | 6 | | | | | | | | | | |
| | S Caruso | 7$^8$ | 6 | | | S Caruso | 3 | 4 | | | | | | | | | | |
| 7 | T Monteiro | 6$^6$ | 2 | | | | | | | | | | | | | | | |

### 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 | Semifinals | Semifinals | Semifinals | Semifinals |
| Q | M Zekić | 7 | 7$^7$ | | | | | | | | | | | | | | |
| LL | M Cuevas | 5 | 6$^5$ | | Q | M Zekić | | | | | | | | | | | |
| | M Donati | 7$^{10}$ | 7 | | | M Donati | w/o | | | | | | | | | | |
| | C Ruud | 6$^8$ | 5 | | | | | | | | M Donati | 6 | 0 | | | | |
| | L Vanni | 2 | 4 | | | | | | | | A Giannessi | 2 | 0$^r$ | | | | |
| | E Gulbis | 6 | 6 | | | E Gulbis | 6 | 6$^3$ | 1 | | | | | | | | |
| | A Giannessi | 6 | 6 | | | A Giannessi | 2 | 7$^7$ | 6 | | | | | | | | |
| LL | M Janvier | 1 | 4 | | | | | | | | | | | M Donati | 0 | 6 | 6 |
| 6 | G Andreozzi | 3 | 4 | | | | | | | | | | | A Balázs | 6 | 4 | 4 |
| | B Rola | 6 | 6 | | | B Rola | 1 | 4 | | | | | | | | | |
| WC | Omar Giacalone | 0 | 2 | | | A Balázs | 6 | 6 | | | | | | | | | |
| | A Balázs | 6 | 6 | | | | | | | | A Balázs | 6 | 6 | | | | |
| | M Arévalo | 1 | 6 | 7 | | | | | | 2 | P Cuevas | 3 | 4 | | | | |
| Q | Marc Sieber | 6 | 1 | 5 | | M Arévalo | 3 | 1 | | | | | | | | | |
| | J Kovalík | 6 | 5 | 4 | 2 | P Cuevas | 6 | 6 | | | | | | | | | |
| 2 | P Cuevas | 3 | 7 | 6 | | | | | | | | | | | | | |