Stadium: Court 3 Opatija Round: 28 Ground: Clay
| ITF M15 Opatija | 2021/03/26 11:25 | Oleksandr Ovcharenko v Davide Galoppini | 6-7,6-1,6-4 |
| ITF M15 Opatija | 2021/03/25 09:00 | Sebastian Prechtel v Oleksandr Ovcharenko | 4-6,2-6 |
| ITF M15 Opatija | 2021/03/24 09:00 | Oleksandr Ovcharenko v Francesco Passaro | 6-2,6-3 |
| ITF M15 Opatija | 2021/03/23 09:00 | Oleksandr Ovcharenko v Matyas Fuele | 6-3,6-2 |
| ITF M15 Opatija | 2021/03/22 10:15 | Oleksandr Ovcharenko v Benedikt Emesz | 6-1,6-3 |
| ITF M15 Opatija | 2021/03/21 11:00 | Oleksandr Ovcharenko v Josip Krstanovic | 6-4,6-0 |
| ITF M15 Antalya | 2021/03/12 07:00 | Matheus Pucinelli De Almeida v Oleksandr Ovcharenko | 6-3,6-2 |
| ITF M15 Antalya | 2021/03/12 07:00 | Matheus Almeida v Oleksandr Ovcharenko | 6-3,6-2 |
| 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 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 |