Stadium: Court 2 Round: 14 Ground: Clay
| ITF M25 Koksijde | 2021/08/20 10:35 | Mathieu Perchicot v Christopher Heyman | 6-4,6-4 |
| ITF M25 Koksijde | 2021/08/19 08:00 | Christopher Heyman v Aidan Mchugh | 7-6,6-4 |
| ITF M25 Koksijde | 2021/08/17 08:00 | Christopher Heyman v Tom Pisane | 6-0,6-3 |
| ITF M25 Koksijde | 2021/08/16 11:15 | Christopher Heyman v Max Cunat | 6-2,6-2 |
| ITF M25 Wetzlar | 2021/08/08 10:00 | Peter Heller v Christopher Heyman | 6-4,6-7,6-4 |
| ITF M25 Wetzlar | 2021/08/07 14:10 | Harold Mayot v Christopher Heyman | 3-6,6-7 |
| ITF M25 Wetzlar | 2021/08/06 12:00 | Christopher Heyman v Alexey Vatutin | 6-3,7-5 |
| ITF M25 Wetzlar | 2021/08/05 11:35 | Christopher Heyman v Mats Rosenkranz | 6-4,7-6 |
| ITF M15 Bratislava | 2021/08/17 13:40 | Matvey Minin v Patrik Niklas-Salminen | 6-1,7-6 |
| ITF M15 Gdynia | 2021/08/10 14:10 | Alexis Musialek v Patrik Niklas-Salminen | 6-4,6-3 |
| ITF M15 Parnu | 2021/08/04 08:30 | Patrik Niklas-Salminen v Yan Sabanin | 3-6,6-7 |
| Challenger Tampere | 2021/07/19 16:05 | Patrik Niklas-Salminen v Alexandre Muller | 2-6,1-6 |
| ITF M15 Nur-Sultan | 2021/02/10 04:45 | Patrik Niklas-Salminen v Oscar Weightman | 6-4,4-6,2-6 |
| ITF M15 Nur-Sultan | 2021/02/04 05:00 | Otto Virtanen v Patrik Niklas-Salminen | 6-2,6-3 |
| ITF M15 Nur-Sultan | 2021/02/03 09:05 | Francesco Maestrelli v Patrik Niklas-Salminen | 3-6,2-6 |
| ITF M15 Parnu | 2020/11/07 09:25 | Patrik Niklas-Salminen v Otto Virtanen | 2-6,6-7 |