Stadium: Court 4 Round: 54 Ground: Hardcourt indoor
| ITF M15 St Petersburg Qual | 2021/04/11 09:20 | Sarp Agabigun v Mert Alkaya | 6-4,6-3 |
| ITF M15 St Petersburg | 2021/04/09 08:00 | Ivan Nedelko v Sarp Agabigun | 6-1,6-4 |
| ITF M15 St Petersburg | 2021/04/08 10:45 | Sarp Agabigun v Alexey Zakharov | 6-2,6-4 |
| ITF M15 St Petersburg | 2021/04/07 11:15 | Sarp Agabigun v Aleksei Abazov | 6-0,6-0 |
| ITF M15 St Petersburg | 2021/04/05 06:55 | Sarp Agabigun v Igor Trunov | 6-0,6-2 |
| ITF M15 St Petersburg | 2021/04/04 09:50 | Sarp Agabigun v Klim Kozyrev | 6-3,6-0 |
| ITF M15 Antalya | 2021/03/16 07:00 | Sarp Agabigun v Edoardo Lavagno | 4-6,7-5,8-10 |
| ITF M15 Antalya | 2021/03/15 08:30 | Sarp Agabigun v Vladislav Gorbatenko | 6-1,6-4 |
| ITF M15 St Petersburg Qual | 2021/04/11 13:55 | Dominik Recek v Evgeny Philippov | 7-5,6-3 |
| ITF M15 St Petersburg | 2021/04/05 06:55 | Yanki Erel v Dominik Recek | 7-5,6-2 |
| ITF M15 St Petersburg | 2021/04/04 13:15 | Dominik Recek v Aliaksandr Liaonenka | 6-4,6-2 |
| ITF M15 Bratislava | 2021/03/08 09:00 | Jakub Novak v Dominik Recek | 2-6,3-6 |
| ITF M15 Bratislava | 2021/03/03 14:45 | Dominik Recek v Zsombor Piros | 4-6,3-6 |
| ITF M15 Bratislava | 2021/03/02 09:00 | Neil Oberleitner v Dominik Recek | 6-4,6-7,3-10 |
| ITF M15 Bratislava | 2021/03/01 09:00 | Matej Galik v Dominik Recek | 4-6,6-3,7-10 |
| ITF M15 Heraklion | 2020/11/09 08:00 | Sean Hodkin v Dominik Recek | 6-4,6-1 |