Stadium: Court 3 Round: 62 Ground: Clay
| ITF M15 Skopje | 2021/06/10 07:45 | Ryan Nijboer v Dian Nedev | 6-3,6-2 |
| ITF M15 Skopje | 2021/06/08 09:00 | Nicolo Turchetti v Dian Nedev | 4-6,6-3,8-10 |
| ITF M15 Skopje | 2021/06/07 11:30 | Berk Bugarikj v Dian Nedev | 2-6,2-6 |
| ITF M15 Skopje | 2021/06/06 09:00 | Dian Nedev v Tom Pisane | 6-3,5-7,10-5 |
| ITF M15 Skopje | 2021/05/30 14:00 | Dian Nedev v Boris Butulija | 6-4,4-6,6-10 |
| ITF M15 Antalya | 2021/03/08 09:00 | Julien Cagnina v Dian Nedev | 7-6,6-1 |
| ITF M15 Antalya | 2021/03/07 07:00 | Artsiom Dabryian v Dian Nedev | 5-7,2-6 |
| ITF M15 Antalya | 2021/03/01 10:00 | Stefan Palosi v Dian Nedev | 4-6,6-4,10-7 |
| ITF M25 Most | 2021/05/26 08:00 | Filip Duda v Pavel Nejedly | 4-6,2-6 |
| ITF M25 Most | 2021/05/25 09:35 | Filip Duda v Stepan Mruzek | 2-6,6-4,10-5 |
| ITF M25 Most | 2021/05/24 09:00 | Filip Duda v Jakub Nicod | 6-3,6-1 |
| ITF M25 Most | 2021/05/23 15:00 | Filip Duda v Dominique Graf | 6-4,6-4 |
| ITF M25 Jablonec Nad Nisou | 2021/05/18 07:30 | Jean Thirouin v Filip Duda | 3-6,6-4,10-7 |
| ITF M25 Jablonec Nad Nisou | 2021/05/17 08:30 | Antonin Bolardt v Filip Duda | 0-6,3-6 |
| ITF M25 Jablonec Nad Nisou | 2021/05/16 10:00 | Krystof Zapsky v Filip Duda | 6-4,3-6,9-11 |
| ITF M25 Prague | 2021/05/11 14:15 | Thai-Son Kwiatkowski v Filip Duda | 6-3,6-1 |