Stadium: Court 2 Opatija Round: 27 Ground: Clay
| ITF M15 Porec | 2021/03/09 14:10 | Giovanni Fonio v Pietro Rondoni | 1-6,6-3,3-6 |
| 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 Rovinj | 2021/03/18 10:35 | Mili Poljicak v Giovanni Fonio | 3-6,2-6 |
| ITF M15 Rovinj | 2021/03/16 10:00 | Giovanni Fonio v Zsombor Piros | 6-3,6-3 |
| ITF M15 Porec | 2021/03/09 14:10 | Giovanni Fonio v Pietro Rondoni | 1-6,6-3,3-6 |
| ITF M15 Antalya | 2021/02/20 06:55 | Giovanni Fonio v Pedro Cachin | 7-6,4-6,2-6 |
| ITF M15 Opatija | 2021/03/25 12:15 | Pietro Rondoni v Timo Legout | 6-1,3-6,6-2 |
| ITF M15 Opatija | 2021/03/24 11:20 | Ignacio Monzon v Pietro Rondoni | 2-6,3-6 |
| ITF M15 Rovinj | 2021/03/18 10:30 | David Pichler v Pietro Rondoni | 6-4,6-2 |
| ITF M15 Rovinj | 2021/03/17 10:00 | Pietro Rondoni v Admir Kalender | 7-5,6-4 |
| ITF M15 Porec | 2021/03/14 08:55 | Filip Misolic v Pietro Rondoni | 6-4,6-4 |
| ITF M15 Porec | 2021/03/13 10:00 | Damien Wenger v Pietro Rondoni | 4-6,5-7 |
| ITF M15 Porec | 2021/03/11 09:00 | Pietro Rondoni v Davide Galoppini | 6-4,6-3 |
| ITF M15 Porec | 2021/03/09 14:10 | Giovanni Fonio v Pietro Rondoni | 1-6,6-3,3-6 |