Stadium: Court 2 Round: 54 Ground: Clay
| ITF M25 Grasse | 2021/06/14 09:25 | Matvey Minin v Rayane Stable | 5-7,3-6 |
| ITF M15 Helsinki | 2021/06/03 07:00 | Matvey Minin v Clement Tabur | 3-6,3-6 |
| ITF M15 Helsinki | 2021/06/02 06:30 | Iiro Vasa v Matvey Minin | 2-6,4-6 |
| ITF M15 Helsinki | 2021/06/01 07:00 | Matvey Minin v Daniel Svensson | 6-3,6-4 |
| ITF M15 Helsinki | 2021/05/31 08:30 | Matvey Minin v Hermanni Tiainen | 7-6,6-1 |
| ITF M25 Vic | 2021/05/16 11:00 | Inaki Cabrera Bello v Matvey Minin | 6-4,4-6,11-9 |
| ITF M15 Valldoreix | 2021/05/09 13:00 | Matvey Minin v Ryan Nijboer | 6-7,2-6 |
| ITF M15 St Petersburg | 2021/04/15 13:40 | Matvey Minin v Savriyan Danilov | 3-6,1-6 |
| ITF M15 Genova | 2021/06/15 12:15 | Kirill Kivattsev v Tomas Jirousek | 7-6,6-4 |
| ITF M15 Genova | 2021/06/14 07:00 | Kirill Kivattsev v Raphael Baltensperger | 7-6,7-6 |
| ITF M15 Gaiba | 2021/06/12 11:00 | Kirill Kivattsev v Mats Rosenkranz | 2-6,4-6 |
| ITF M15 Gaiba | 2021/06/11 09:00 | Alessandro Bega v Kirill Kivattsev | 6-7,3-6 |
| ITF M15 Gaiba | 2021/06/10 08:45 | Davide Galoppini v Kirill Kivattsev | 6-7,2-6 |
| ITF M15 Gaiba | 2021/06/09 10:40 | Kirill Kivattsev v David Pichler | 4-6,6-3,6-3 |
| Challenger Biella | 2021/03/08 11:15 | Andrea Arnaboldi v Kirill Kivattsev | 6-3,6-4 |
| Challenger Biella | 2021/03/07 12:50 | Kirill Kivattsev v Sandro Ehrat | 7-6,6-3 |