Stadium: Court 10 Round: 25 Ground: Hardcourt outdoor
| ITF M25 Falun | 2021/09/28 10:55 | Neuchrist, Maximilian v Simon Freund | 4-6,6-3,6-2 |
| ITF M25 Falun | 2021/09/27 09:45 | Simon Freund v Robin Thour | 4-6,6-3,12-10 |
| ITF M25 Jonkoping | 2021/09/21 09:10 | Jonathan Mridha v Simon Freund | 7-5,4-6,7-5 |
| ITF M25 Ricany | 2021/09/01 11:40 | Bolardt, Antonin v Simon Freund | 6-2,1-6,6-4 |
| ITF M15 Bratislava | 2021/08/26 07:55 | Kirkov, Vasil v Simon Freund | 6-0,6-1 |
| ITF M15 Bratislava | 2021/08/25 11:35 | Simon Freund v Obrad Markovski | 6-3,6-4 |
| ITF M25 The Hague | 2021/06/27 08:00 | Simon Freund v Lodewijk Weststrate | 1-6,3-6 |
| ITF M25 Alkmaar | 2021/06/23 09:00 | Simon Freund v Javier Barranco Cosano | 2-6,6-7 |
| ITF - M15 Doha | 2021/10/11 15:50 | Solberg, Christoffer v Garv Bahl | 2-6,2-6 |
| ITF M25 Falun | 2021/09/26 08:00 | Jonathan Stenberg v Solberg, Christoffer | 6-0,6-2 |
| ITF M25 Jonkoping | 2021/09/20 07:30 | Solberg, Christoffer v Elmer Moller | 6-7,1-6 |
| ITF M15 Parnu | 2021/08/03 07:00 | Solberg, Christoffer v Fellin, Pietro Orlando | 3-6,4-6 |
| ITF M15 Vejle | 2021/07/25 11:00 | Solberg, Christoffer v Valdemar Frederik Pape | 2-6,2-6 |
| ITF - M15 Doboj | 2021/07/13 11:30 | Nincevic, Frane v Solberg, Christoffer | 6-2,7-6 |
| ITF M15 Sofia | 2021/07/05 08:00 | Solberg, Christoffer v Mikhaylyuk, Ivan | 1-6,3-6 |
| ITF M15 Sofia | 2021/07/04 10:30 | Solberg, Christoffer v Sergis Kyratzis | 6-1,6-3 |