Stadium: Court 13 Round: 25 Ground: Hardcourt outdoor
| ITF - Sintra M25 | 2021/09/14 10:00 | Adria Soriano Barrera v George Davies | 6-3,6-4 |
| ITF - Sintra M25 | 2021/09/13 16:30 | Adria Soriano Barrera v Andre Amaro | 6-0,6-1 |
| ITF - Zilina M15 | 2021/09/04 08:00 | Bastian Malla v Adria Soriano Barrera | 6-2,6-1 |
| ITF - Zilina M15 | 2021/09/03 09:45 | Zsombor Velcz v Adria Soriano Barrera | 3-6,4-6 |
| ITF - Zilina M15 | 2021/09/02 12:15 | Adria Soriano Barrera v Jonathan Mridha | 6-7,6-4,6-3 |
| ITF - Zilina M15 | 2021/09/01 08:00 | Adria Soriano Barrera v Boris Pokotilov | 6-2,6-2 |
| ITF - Zilina M15 | 2021/08/31 09:30 | Adria Soriano Barrera v Patrik Jancovic | 6-2,6-1 |
| ITF - Bratysława M15 | 2021/08/25 12:45 | Robin Stanek v Adria Soriano Barrera | 6-4,6-3 |
| ITF - Sintra M25 | 2021/09/08 10:40 | Luca Potenza v Sebastian Fanselow | 6-4,6-4 |
| ITF - Bagneres-De-Bigorre M25 | 2021/09/01 07:30 | Millen Hurrion v Sebastian Fanselow | 2-6,7-5,7-6 |
| Challenger Poznań | 2021/07/25 10:30 | Sebastian Fanselow v Lucas Gerch | 2-6,5-7 |
| ITF - Bourg-en-Bresse M25 | 2021/06/29 13:00 | Viktor Durasovic v Sebastian Fanselow | 1-6,7-6,6-2 |
| Challenger Milan | 2021/06/20 13:15 | Sebastian Fanselow v Camilo Ugo Carabelli | 6-3,2-6,2-6 |
| Challenger Forli | 2021/06/15 09:30 | Sebastian Fanselow v Camilo Ugo Carabelli | 2-6,2-6 |
| Challenger Forli | 2021/06/14 09:30 | Sebastian Fanselow v Luca Vanni | 2-6,6-2,7-5 |
| Challenger Forli | 2021/06/13 12:20 | Sebastian Fanselow v Antoine Bellier | 6-3,6-4 |