Stadium: Court 5 Round: 62 Ground: Clay
| ITF M15 Antalya | 2021/04/18 07:00 | Abdurahman Saidmuhamedov v Mathys Erhard | 1-6,1-6 |
| ITF M15 Antalya | 2021/04/13 07:00 | Mathys Erhard v Matteo Arnaldi | 6-7,6-3,10-12 |
| ITF M15 Antalya | 2021/04/12 09:00 | Mathys Erhard v Stefanos Sakellaridis | 6-3,7-5 |
| ITF M15 Antalya | 2021/04/11 07:00 | Oleksandr Ovcharenko v Mathys Erhard | 6-4,4-6,5-10 |
| ITF M15 Antalya | 2021/03/14 07:00 | Calin Manda v Mathys Erhard | 6-4,6-4 |
| ITF M15 Antalya | 2021/03/10 11:20 | Oleksandr Ovcharenko v Mathys Erhard | 6-3,7-6 |
| ITF M15 Antalya | 2021/03/08 09:00 | Mathys Erhard v Marlon Vankan | 6-0,6-2 |
| ITF M15 Antalya | 2021/03/07 07:00 | Stefan Micov v Mathys Erhard | 1-6,2-6 |
| ITF M15 Antalya | 2021/04/18 07:00 | Seong-Gook Oh v Daniil Glinka | 3-6,0-6 |
| ITF M15 St Petersburg | 2021/04/15 09:00 | Daniil Glinka v Marat Sharipov | 2-6,3-6 |
| ITF M15 St Petersburg | 2021/04/14 13:10 | Jan Satral v Daniil Glinka | 4-6,2-6 |
| ITF M15 St Petersburg | 2021/04/12 08:30 | Daniil Glinka v Alexander Zgirovsky | 7-6,7-6 |
| ITF M15 St Petersburg Qual | 2021/04/11 11:00 | Daniil Glinka v Alexander Stepin | 6-4,6-3 |
| ITF M15 St Petersburg | 2021/04/08 09:00 | Daniil Glinka v Jan Satral | 4-6,3-6 |
| ITF M15 St Petersburg | 2021/04/06 14:25 | Daniil Glinka v Daniil Golubev | 6-0,6-0 |
| ITF M15 St Petersburg | 2021/04/05 11:00 | Daniil Glinka v Yannik Steinegger | 6-2,6-2 |