Stadium: Court 1 Round: 44 Ground: Hardcourt outdoor
| ITF - M15 Sharm El Sheikh | 2020/10/11 07:00 | Viacheslav Bielinskyi v Alec Beckley | 5-7,1-6 |
| ITF - M15 Sharm El Sheikh | 2020/10/07 11:20 | Viacheslav Bielinskyi v Vilardo, Francesco | 2-6,6-7 |
| ITF M15 Novomoskovsk | 2020/09/03 11:10 | Viacheslav Bielinskyi v Shyla, Yaraslau | 6-4,4-6,3-6 |
| ITF M15 Novomoskovsk | 2020/09/02 07:00 | Viacheslav Bielinskyi v Oleksandr Ovcharenko | 1-6,7-6,6-2 |
| UTF Invitational | 2020/06/13 13:00 | Nikita Mashtakov v Viacheslav Bielinskyi | 6-2,6-3 |
| UTF Invitational | 2020/06/12 12:00 | Manafov, Vladyslav v Viacheslav Bielinskyi | 4-6,4-6 |
| UTF Invitational | 2020/06/11 08:30 | Oleg Prihodko v Viacheslav Bielinskyi | 1-6,6-7 |
| UTF Invitational | 2020/06/10 13:00 | Nikita Mashtakov v Viacheslav Bielinskyi | 6-3,6-6 |
| ITF - M15 Sharm El Sheikh | 2020/10/12 09:00 | Kalovelonis, Markos v Omni Kumar | 2-6,5-7 |
| ITF - M15 Sharm El Sheikh | 2020/10/11 11:00 | Kalovelonis, Markos v Suntic, Sabit | 6-4,6-2 |
| ITF - M15 Sharm El Sheikh | 2020/10/06 08:00 | Kalovelonis, Markos v Capecchi, Daniele | 1-6,3-6 |
| ITF - M15 Héraklion | 2020/02/27 11:05 | Jordan Correia Passos Do Carmo v Kalovelonis, Markos | 7-5,6-0 |
| ITF - M15 Héraklion | 2020/02/26 11:25 | Kalovelonis, Markos v Keisidis, Christos | 5-7,6-4,6-4 |
| ITF - M15 Héraklion | 2020/02/20 08:25 | Kalovelonis, Markos v Musialek, Alexis | 2-6,3-6 |
| ITF - M15 Héraklion | 2020/02/19 12:55 | David Pichler v Kalovelonis, Markos | 3-6,6-4,3-6 |
| Challenger Bendigo | 2020/01/13 03:15 | Steve Johnson v Kalovelonis, Markos | 6-3,6-7,6-3 |