# 2018 Internazionali di Tennis del Friuli Venezia Giulia – Singles

Elias Ymer was the defending champion but chose not to defend his title.
Paolo Lorenzi won the title after defeating Máté Valkusz 6–3, 3–6, 6–4 in the final.

## Seeds

* Paolo Lorenzi (champion)
* Facundo Bagnis (quarterfinals)
* Andrej Martin (second round)
* Nino Serdarušić (first round)
* Tommy Robredo (quarterfinals)
* Zdeněk Kolář (quarterfinals)
* Guilherme Clezar (semifinals)
* Viktor Galović (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 | Final | Final |
| 1 | Paolo Lorenzi | 7$^{11}$ | 7 | | | | | |
| | João Domingues | 6$^9$ | 5 | | | | | |
| | João Domingues | 6$^9$ | 5 | 1 | Paolo Lorenzi | 6 | 3 | 6 |
| | | | | Q | Máté Valkusz | 3 | 6 | 4 |
| Q | Máté Valkusz | 6 | 6 | Q | Máté Valkusz | 3 | 6 | 4 |
| 7 | Guilherme Clezar | 2 | 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 | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | P Lorenzi | 7 | 7$^7$ | | | | | | | | | | | | | | |
| | S Diez | 5 | 6$^5$ | | 1 | P Lorenzi | 6 | 6 | | | | | | | | | |
| Q | R Bonadio | 6 | 2 | 1 | | A Bega | 4 | 3 | | | | | | | | | |
| | A Bega | 2 | 6 | 6 | | | | | | 1 | P Lorenzi | 6 | 6 | | | | |
| WC | E Dalla Valle | 6 | 7 | | | | | | | 5 | T Robredo | 3 | 3 | | | | |
| | M Zekić | 2 | 5 | | WC | E Dalla Valle | 3 | 0$^r$ | | | | | | | | | |
| | L Giustino | 6$^3$ | 1 | | 5 | T Robredo | 6 | 0 | | | | | | | | | |
| 5 | T Robredo | 7$^7$ | 6 | | | | | | | | | | | 1 | P Lorenzi | 7$^{11}$ | 7 |
| 3 | A Martin | 6$^6$ | 7 | 6 | | | | | | | | | | | J Domingues | 6$^9$ | 5 |
| | A Šetkić | 7$^8$ | 5 | 3 | 3 | A Martin | 4 | 6 | 1 | | | | | | | | |
| | H Casanova | 0 | 2 | | | J Domingues | 6 | 3 | 6 | | | | | | | | |
| | J Domingues | 6 | 6 | | | | | | | | J Domingues | 6 | 6 | | | | |
| | A Basso | 7$^7$ | 7 | | | | | | | Q | E Couacaud | 2 | 1 | | | | |
| Alt | D Muñoz de la Nava | 6$^1$ | 5 | | | A Basso | 6 | 6$^6$ | 3 | | | | | | | | |
| | G Mager | 4 | 1 | | Q | E Couacaud | 4 | 7$^8$ | 6 | | | | | | | | |
| Q | E Couacaud | 6 | 6 | | | | | | | | | | | | | | |

### Bottom 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 |
| 6 | Z Kolář | 6 | 6 | | | | | | | | | | | | | | |
| | C Gómez-Herrera | 3 | 4 | | 6 | Z Kolář | 6 | 6 | | | | | | | | | |
| Q | D Dutra da Silva | 5 | 6 | 0$^r$ | WC | F Forti | 1 | 4 | | | | | | | | | |
| WC | F Forti | 7 | 1 | 5 | | | | | 6 | Z Kolář | 0 | 0 | | | | | |
| | G Oliveira | 4 | 4 | | | | | | Q | M Valkusz | 6 | 6 | | | | | |
| Q | M Valkusz | 6 | 6 | | Q | M Valkusz | 6 | 6 | | | | | | | | | |
| LL | M Eriksson | 6 | 6 | | LL | M Eriksson | 0 | 1 | | | | | | | | | |
| 4 | N Serdarušić | 3 | 1 | | | | | | | | | | | Q | M Valkusz | 6 | 6 |
| 7 | G Clezar | 6 | 7 | | | | | | | | | | | 7 | G Clezar | 2 | 4 |
| WC | Riccardo Balzerani | 2 | 5 | | 7 | G Clezar | 6 | 6 | | | | | | | | | |
| | P Cachin | 3 | 6 | 6 | | P Cachin | 2 | 4 | | | | | | | | | |
| WC | J Berrettini | 6 | 1 | 2 | | | | | 7 | G Clezar | 6 | 4 | 6 | | | | |
| | A Pellegrino | 6$^7$ | 6 | 6 | | | | | 2 | F Bagnis | 4 | 6 | 2 | | | | |
| | L Grigelis | 7$^9$ | 2 | 4 | | A Pellegrino | 5 | 5 | | | | | | | | | |
| | M Viola | 0 | 2 | | 2 | F Bagnis | 7 | 7 | | | | | | | | | |
| 2 | F Bagnis | 6 | 6 | | | | | | | | | | | | | | |