Stadium: Court 1 Round: 25 Ground: Hardcourt outdoor
| ITF M25 Bagneres-De-Bigorre | 2021/08/30 10:55 | Millen Hurrion v Luca Sanchez | 6-4,7-5 |
| ITF M15 Gdynia | 2021/08/09 08:00 | Olaf Pieczkowski v Millen Hurrion | 6-1,6-7,10-4 |
| ITF M15 Gdynia | 2021/08/08 08:00 | Tom Hands v Millen Hurrion | 6-1,5-7,8-10 |
| ITF M15 Novi Sad | 2021/08/03 08:00 | Domagoj Biljesko v Millen Hurrion | 7-5,6-2 |
| ITF M15 Novi Sad | 2021/08/02 09:30 | Franco Roncadelli v Millen Hurrion | 3-6,4-6 |
| ITF M15 Novi Sad | 2021/08/01 13:45 | Pavle Daljev v Millen Hurrion | 1-6,3-6 |
| International Tennis Series | 2020/07/08 12:00 | Millen Hurrion v Micah Braswell | 6-7,3-6 |
| International Tennis Series | 2020/07/06 15:25 | David Metz v Millen Hurrion | 4-6,1-6 |
| Challenger Poznan | 2021/07/25 10:30 | Sebastian Fanselow v Lucas Gerch | 2-6,5-7 |
| ITF M25 Bourg-en-Bresse | 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 |
| Challenger Orlando | 2021/06/06 14:00 | Thiago Agustin Tirante v Sebastian Fanselow | 6-2,3-6,6-4 |
| Challenger Little Rock | 2021/05/31 15:00 | Alexis Galarneau v Sebastian Fanselow | 3-6,6-3,6-4 |