Stadium: Court 2 Round: 62 Ground: Clay
| ITF M15 Antalya | 2021/10/25 10:30 | Jakub Katuch v Gabriel Ciro Da Silva | 6-2,3-6,4-10 |
| ITF M15 Antalya | 2021/10/17 07:00 | Jakub Katuch v Gabriel Ciro Da Silva | 6-4,3-6,14-16 |
| ITF M25 Budapest | 2021/09/26 11:00 | Mark Havlicek v Jakub Katuch | 6-2,6-4 |
| ITF M25 Pardubice | 2021/09/20 09:00 | Filip Duda v Jakub Katuch | 6-1,6-1 |
| ITF M25 Ricany | 2021/08/29 09:00 | Jakub Katuch v Martin Benes | 3-6,3-6 |
| ITF M15 Bratislava | 2021/08/23 09:00 | Marek Semjan v Jakub Katuch | 6-4,6-4 |
| ITF M25 Telfs | 2021/07/11 09:00 | Jakub Katuch v Niklas Waldner | 1-6,3-6 |
| ITF M25 Most | 2021/05/23 14:00 | Jakub Katuch v Hasan Ibrahim | 1-6,4-6 |
| ITF M15 Sozopol | 2021/10/10 10:30 | Tommaso Compagnucci v S Mert Ozdemir | 6-2,7-5 |
| ITF M15 Sozopol | 2021/10/04 08:00 | S Mert Ozdemir v Plamen Milushev | 2-6,6-3,5-10 |
| ITF M15 Sozopol | 2021/10/03 09:00 | S Mert Ozdemir v Mert Ramadan | 5-7,6-4,10-6 |
| ITF M15 Antalya | 2021/06/28 06:30 | S Mert Ozdemir v Demetris Azoides | 5-7,5-7 |
| ITF M15 Antalya | 2021/06/27 06:30 | Onder Balci v S Mert Ozdemir | 1-6,0-6 |
| ITF M15 Antalya | 2021/06/20 07:00 | S Mert Ozdemir v Vladislav Melnic | 1-6,2-6 |
| ITF M15 Antalya | 2021/06/13 07:30 | Francisco Llanes v S Mert Ozdemir | 6-1,6-2 |
| ITF M15 Antalya | 2021/05/23 07:30 | Arda Azkara v S Mert Ozdemir | 7-5,6-4 |