Stadium: Court 5 Round: 62 Ground: Clay
| 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 M25 Poznan | 2021/08/24 14:00 | Ivan Kazakov v Michal Mikula | 1-6,2-6 |
| ITF M25 Poznan | 2021/08/24 08:00 | Ivan Kazakov v Flemming Peters | 2-6,7-5,10-3 |
| ITF M15 Platja D'Aro | 2021/10/05 08:30 | Max Houkes v Tomas R Sierra | 6-2,6-0 |
| ITF M15 Platja D'Aro | 2021/10/04 11:00 | Tomas R Sierra v Enzo Wallart | 6-7,6-2,10-1 |
| ITF Argentina F10 | 2015/08/24 13:00 | Tomas R Sierra v Fermin Peralta Martinez | 4-6,1-6 |