Estádio: Court 20 Round: 62 Ground: Clay
| ITF - M15 Monastir | 2021/11/01 08:00 | Pierre Delage v Ivan Kazakov | 6-4,6-1 |
| ITF - M15 Monastir | 2021/10/31 09:00 | Ivan Kazakov v Nicolas Ancedy | 4-6,6-3,10-6 |
| ITF - M15 Monastir | 2021/10/25 10:00 | Pierre Antoine Tailleu v Ivan Kazakov | 2-6,6-4,10-5 |
| ITF - M15 Monastir | 2021/10/18 09:30 | Denis Constantin Spiridon v Ivan Kazakov | 7-5,6-2 |
| ITF - M15 Monastir | 2021/10/17 09:00 | Tushar Sharma v Ivan Kazakov | 1-6,1-6 |
| ITF - M15 Platja d'Aro | 2021/10/10 08:00 | Ivan Kazakov v Noah Regas | 4-6,1-6 |
| ITF - M15 Platja d'Aro | 2021/10/03 11:00 | Jorge Martinez Martinez v Ivan Kazakov | 6-7,6-3,10-2 |
| ITF - M25 Ricany | 2021/08/30 09:00 | Antonin Stepanek v Ivan Kazakov | 6-1,7-5 |
| ITF - M15 Antália | 2021/11/11 08:20 | Oleksandr Bielinskyi v Ilya Snitari | 6-7,4-6 |
| ITF - M15 Antália | 2021/11/10 06:30 | Bogdan Bobrov v Oleksandr Bielinskyi | 4-6,1-6 |
| ITF - M15 Antália | 2021/11/09 08:15 | Ignacio Cuzzani v Oleksandr Bielinskyi | 6-3,1-6,6-10 |
| ITF - M15 Antália | 2021/11/08 12:45 | Gheorghe Claudiu Schinteie v Oleksandr Bielinskyi | 2-6,6-1,9-11 |
| ITF - M15 Antália | 2021/11/07 06:30 | Dmitrii Vasilev v Oleksandr Bielinskyi | 1-6,6-1,3-10 |
| UTR Pro Tennis Series - Nis | 2021/10/10 08:00 | Oleksandr Bielinskyi v Egor Novikov | 6-2,5-3 |
| UTR Pro Tennis Series - Nis | 2021/10/09 09:58 | Oleksandr Bielinskyi v George Botezan | 6-7,6-4,6-2 |
| UTR Pro Tennis Series - Nis | 2021/10/08 16:45 | Lawrence Bataljin v Oleksandr Bielinskyi | 7-5,5-7,0-5 |