Stadium: Court 2 Round: 25 Ground: Hardcourt outdoor
| ITF M25 Telfs | 2021/07/14 14:00 | Daniil Glinka v Philip Bachmaier | 4-6,3-6 |
| ITF M25 Velenje | 2021/07/06 10:10 | Daniil Glinka v Ronan Joncour | 6-2,3-6,5-7 |
| ITF M15 Antalya | 2021/06/29 11:50 | Daniil Glinka v Stefanos Sakellaridis | 3-6,2-6 |
| ITF M15 Antalya | 2021/06/28 12:20 | Daniil Glinka v Samuil Konov | 6-3,6-1 |
| ITF M15 Antalya | 2021/06/27 06:30 | Daniil Glinka v Sergis Kyratzis | 3-6,6-4,10-8 |
| Challenger Almaty | 2021/06/06 08:00 | Jesper De Jong v Daniil Glinka | 6-3,6-3 |
| ITF M15 Antalya | 2021/05/25 07:00 | Daniil Glinka v Michalis Sakellaridis | 6-7,5-7 |
| ITF M15 Antalya | 2021/05/24 10:00 | Daniil Glinka v Umut Akkoyun | 6-4,6-2 |
| ITF M25 Idanha-A-Nova | 2021/07/21 13:10 | Jean Thirouin v Daniel Little | 3-6,4-6 |
| ITF M15 Doboj | 2021/07/16 08:00 | Jean Thirouin v Dusan Obradovic | 6-7,4-6 |
| ITF M15 Doboj | 2021/07/15 08:00 | Jean Thirouin v Luka Pavlovic | 6-3,7-6 |
| ITF M15 Doboj | 2021/07/14 12:05 | Jean Thirouin v Danijal Muminovic | 6-4,6-2 |
| UTR Pro Tennis Series Beograd | 2021/07/11 08:30 | Olexiy Kolisnyk v Jean Thirouin | 7-6,3-6,3-5 |
| UTR Pro Tennis Series Beograd | 2021/07/10 11:30 | Alex Kuperstein v Jean Thirouin | 4-6,3-6 |
| UTR Pro Tennis Series Beograd | 2021/07/08 10:30 | Jean Thirouin v Viktor Jovic | 6-2,6-4 |
| UTR Pro Tennis Series Beograd | 2021/07/07 12:00 | Jean Thirouin v Aleksa Mardjonovic | 6-4,6-2 |