Stadium: Court 7 Round: 25 Ground: Clay
| ITF - M15 Skopje | 2021/06/06 07:55 | Alexis Gautier v Ryan Nijboer | 6-2,3-6,6-2 |
| ITF - M15 Skopje | 2021/06/05 10:40 | Dalibor Svrcina v Ryan Nijboer | 6-1,4-6,5-7 |
| ITF - M15 Skopje | 2021/06/04 10:25 | Alexander Weis v Ryan Nijboer | 6-7,6-7 |
| ITF - M15 Skopje | 2021/06/03 09:30 | Ryan Nijboer v Alex Rybakov | 2-6,7-6,6-4 |
| ITF - M15 Skopje | 2021/06/02 09:55 | Niels Visker v Ryan Nijboer | 6-4,3-6,4-6 |
| ITF - M25 Vic | 2021/05/19 09:00 | Ryan Nijboer v Facundo Juarez | 6-3,4-6,4-6 |
| ITF - M25 Vic | 2021/05/18 08:00 | Laurent Lokoli v Ryan Nijboer | 3-6,4-6 |
| ITF - M25 Vic | 2021/05/17 08:00 | Pedro Araujo v Ryan Nijboer | 6-3,0-6,4-10 |
| 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 - M15 - Antalya | 2021/02/28 07:00 | Onder Balci v Dian Nedev | 0-6,1-6 |