Stadium: Campo 2 Round: 45 Ground: Clay
| Challenger Perugia Qual | 2018/07/08 10:25 | Giovanni Fonio v Oriol Roca Batalla | 2-6,3-6 |
| ITF Italy F17 | 2018/07/05 14:30 | Mircea-Alexandru Jecan v Giovanni Fonio | 7-5,7-6 |
| ITF Italy F17 | 2018/07/04 13:15 | Luca Tomasetto v Giovanni Fonio | 6-4,1-6,1-6 |
| Challenger L'Aquila | 2018/06/19 12:45 | Roberto Carballes Baena v Giovanni Fonio | 3-6,7-6,7-5 |
| ITF Italy F14 | 2018/06/14 16:00 | Giovanni Fonio v Nik Razborsek | 6-7,2-6 |
| ITF Italy F14 | 2018/06/13 16:00 | Fabrizio Ornago v Giovanni Fonio | 3-6,4-6 |
| ITF Italy F14 | 2018/06/11 15:05 | Giovanni Fonio v Riccardo Balzerani | 7-6,6-4 |
| ITF Italy F13 | 2018/06/08 12:30 | Giovanni Fonio v Riccardo Bellotti | 4-6,6-4,3-6 |