Stadium: Court 5 Round: 25 Ground: Clay
| Challenger - Biella | 2021/05/16 09:00 | Tomas Martin Etcheverry v Giovanni Fonio | 6-4,6-4 |
| ITF - M15 Opatija | 2021/03/28 07:55 | Giacomo Dambrosi v Giovanni Fonio | 2-6,3-6 |
| ITF - M15 Opatija | 2021/03/27 08:30 | Oleksandr Ovcharenko v Giovanni Fonio | 2-6,4-6 |
| ITF - M15 Opatija | 2021/03/26 11:10 | Giovanni Fonio v Pietro Rondoni | 6-3,6-3 |
| ITF - M15 Opatija | 2021/03/25 10:45 | Giovanni Fonio v Matteo Arnaldi | 6-3,6-1 |
| ITF - M15 Opatija | 2021/03/24 10:45 | Giovanni Fonio v Juan Bautista Otegui | 6-3,6-4 |
| ITF - M15 Rovinj | 2021/03/20 11:40 | Giovanni Fonio v Martin Damm | 6-4,3-6,6-7 |
| ITF - M15 Rovinj | 2021/03/19 12:00 | Andrea Basso v Giovanni Fonio | 6-7,1-6 |
| ITF - M15 Antalya | 2021/05/25 07:00 | Thomas Deschamps v Nicolas Parizzia | 3-6,6-3,10-12 |
| ITF - M15 Antalya | 2021/05/23 07:00 | Marco Mania v Nicolas Parizzia | 1-6,0-6 |
| ITF - M15 Antalya | 2021/04/18 07:00 | Davide Galoppini v Nicolas Parizzia | 6-2,6-2 |
| ITF - M15 Antalya | 2021/04/12 09:00 | Nicolas Parizzia v Matteo Arnaldi | 4-6,6-7 |
| ITF - M15 Antalya | 2021/04/11 07:00 | Nicolas Parizzia v Vladislav Tasenkov | 6-2,6-2 |
| ITF - M15 Antalya | 2021/04/04 06:30 | Michel Vernier v Nicolas Parizzia | 3-6,6-2,11-9 |
| ITF - M15 Antalya | 2021/03/16 07:00 | Calin Manda v Nicolas Parizzia | 6-3,6-2 |
| ITF - M15 Antalya | 2021/03/15 08:30 | Egill Sigurdsson v Nicolas Parizzia | 3-6,4-6 |