Stadium: Court 4 Round: 62 Ground: Hardcourt outdoor
| ITF M25 Setubal | 2021/10/06 10:00 | Tim Heger v Henrique Rocha | 2-6,6-4,2-6 |
| ITF M25 Setubal | 2021/10/05 10:00 | Tim Heger v Diogo Morais | 6-1,6-1 |
| ITF M25 Setubal | 2021/10/04 13:30 | Tim Heger v Tomas C Abasolo | 6-4,6-3 |
| ITF M25 Ueberlingen | 2021/08/18 08:00 | Tim Heger v Oriol Roca Batalla | 0-6,6-2,3-6 |
| ITF M25 Ueberlingen | 2021/08/17 07:55 | Tim Heger v Tudor S Gheorghita | 6-1,6-3 |
| ITF M15 Esch/Alzette | 2021/07/20 09:00 | Wilson Leite v Tim Heger | 6-4,6-3 |
| ITF M15 Esch/Alzette | 2021/07/19 09:00 | Tim Heger v Andreja Petrovic | 2-6,4-6 |
| ITF M15 Esch/Alzette | 2021/07/18 09:50 | Tim Heger v Moritz Poswiat | 7-6,4-6,11-9 |
| ITF M25 Loule | 2021/10/10 12:00 | Rodrigo Beires v Lennart Melzer | 4-6,0-6 |
| ITF M25 Setubal | 2021/10/03 11:30 | Martim Simoes v Lennart Melzer | 6-0,6-2 |
| ITF M15 Forbach | 2021/09/26 11:20 | Hugo Pierre v Lennart Melzer | 6-0,6-1 |
| ITF M25 Eupen | 2021/09/06 15:05 | Lennart Melzer v Marcel Hornung | 1-6,1-6 |
| ITF M25 Eupen | 2021/09/05 13:30 | Marc Schmidt v Lennart Melzer | 0-6,0-6 |
| ITF M25 Sierre | 2021/08/29 08:30 | Bastien Rieme v Lennart Melzer | 3-6,6-1,10-4 |
| ITF M25 Trier | 2021/08/23 10:30 | Leopold Zima v Lennart Melzer | 6-1,6-1 |
| ITF M25 Koksijde | 2021/08/15 11:40 | Lennart Melzer v Tom Clavel | 3-6,6-4,8-10 |