Stadium: Court 2 Round: 25 Ground: Hardcourt indoor
| ITF M15 Sozopol | 2021/10/13 15:40 | Kai Wehnelt v Andrew Paulson | 6-7,1-6 |
| ITF M15 Sozopol | 2021/10/10 07:00 | Billy Harris v Kai Wehnelt | 6-4,6-1 |
| ITF M15 Sozopol | 2021/10/09 07:00 | Alexander Donski v Kai Wehnelt | 6-4,3-6,6-7 |
| ITF M15 Sozopol | 2021/10/08 07:00 | Kai Wehnelt v Ilya Snitari | 7-6,6-3 |
| ITF M15 Sozopol | 2021/10/07 07:00 | Kai Wehnelt v George Tsivadze | 6-3,6-1 |
| ITF M15 Sozopol | 2021/10/05 09:00 | Kai Wehnelt v Dian Nedev | 6-3,6-3 |
| Challenger Sibiu | 2021/09/27 07:00 | Kai Wehnelt v Stefan Palosi | 6-7,7-6,2-6 |
| ITF M15 Sozopol | 2021/09/19 07:00 | Kai Wehnelt v Ryan James Storrie | 4-6,6-0,2-6 |
| ITF M25 Falun | 2021/09/28 14:30 | Antoine Escoffier v Markus Eriksson | 6-1,7-5 |
| ITF M25 Jonkoping | 2021/09/20 11:05 | Valentin Royer v Markus Eriksson | 6-7,6-4,7-6 |
| Challenger Banja Luka | 2021/09/05 09:00 | Jonathan Mridha v Markus Eriksson | 6-3,6-2 |
| ITF M25 Poznan | 2021/08/25 13:10 | Roman Andres Burruchaga v Markus Eriksson | 6-2,6-1 |
| ITF M15 Lodz | 2021/08/19 07:55 | Wojciech Marek v Markus Eriksson | 6-4,7-5 |
| ITF M15 Lodz | 2021/08/17 08:00 | Karlis Ozolins v Markus Eriksson | 6-7,6-1,2-6 |
| ITF M15 Gdynia | 2021/08/11 08:00 | Daniel De Jonge v Markus Eriksson | 6-4,6-1 |
| ITF M15 Frederiksberg | 2021/08/08 10:00 | Markus Eriksson v Jonathan Mridha | 3-6,6-7 |