Stadium: Court 2 Opatija Round: 62 Ground: Clay
| ITF M15 Antalya | 2020/12/06 07:00 | Mile Matic v Oleksandr Ovcharenko | 4-6,3-6 |
| ITF M15 Antalya | 2020/12/01 07:00 | Oleksandr Ovcharenko v Taiyo Yamanaka | 4-6,2-6 |
| ITF M15 Antalya | 2020/11/30 12:30 | Oleksandr Ovcharenko v Adam Bronka | 6-1,6-1 |
| ITF M15 Antalya | 2020/11/29 07:00 | Oleksandr Ovcharenko v Aleksandr Braynin | 6-3,6-4 |
| ITF M15 Monastir | 2020/10/29 11:15 | Oleksandr Ovcharenko v Wojciech Marek | 4-6,6-7 |
| ITF M15 Monastir | 2020/10/27 10:00 | Tak Khunn Wang v Oleksandr Ovcharenko | 4-6,6-3,6-7 |
| ITF M15 Monastir | 2020/10/26 08:30 | Oleksandr Ovcharenko v Constantin Bittoun Kouzmine | 6-4,6-2 |
| ITF M15 Monastir | 2020/10/25 12:30 | Oleksandr Ovcharenko v Giorgio Tabacco | 6-3,6-4 |
| ITF M15 Heraklion | 2020/11/24 08:30 | Josip Krstanovic v Timo Stodder | 1-6,4-6 |
| ITF M15 Heraklion | 2020/11/23 10:00 | Stefanos Sakellaridis v Josip Krstanovic | 4-6,1-6 |
| ITF M15 Heraklion | 2020/11/08 12:00 | Josip Krstanovic v Sebastian Gima | 6-7,2-6 |
| ITF M15 Heraklion | 2020/10/26 07:30 | Riccardo Balzerani v Josip Krstanovic | 4-6,7-6,10-7 |
| ITF M15 Heraklion | 2020/10/25 07:30 | Daniel O'Neill v Josip Krstanovic | 0-6,3-6 |
| Adriatic Tennis Series | 2020/06/15 16:45 | Carlos Gomez-Herrera v Josip Krstanovic | 1-6,6-3,10-5 |
| ITF M25 Sunderland | 2020/02/24 10:00 | Josip Krstanovic v Patrick Foley | 1-6,1-6 |
| ITF M25 Sunderland | 2020/02/23 11:30 | Mats Rosenkranz v Josip Krstanovic | 6-3,1-6,8-10 |