Stadium: CEE Logistics-C8 Round: 25 Ground: Clay
| ITF M25 Caslano | 2021/08/25 10:25 | Peter Heller v Patrick Kypson | 6-3,3-6,2-6 |
| ITF M15 Warmbad-Villach | 2021/08/22 09:00 | Peter Heller v Alexander Weis | 6-3,6-4 |
| ITF M15 Warmbad-Villach | 2021/08/21 11:00 | Peter Heller v Gabriel Decamps | 7-5,6-2 |
| ITF M15 Warmbad-Villach | 2021/08/20 12:15 | Peter Heller v Lukas Neumayer | 6-2,3-6,6-3 |
| ITF M15 Warmbad-Villach | 2021/08/19 07:55 | Peter Heller v Maximilian Homberg | 7-5,6-1 |
| ITF M15 Warmbad-Villach | 2021/08/18 08:00 | Peter Heller v Andrea Guerrieri | 6-1,6-1 |
| 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 11:00 | David Pichler v Peter Heller | 3-6,7-5,3-6 |
| ITF M25 Trier | 2021/08/28 12:40 | Louis Wessels v Henri Squire | 7-5,5-7,6-3 |
| ITF M25 Trier | 2021/08/27 15:00 | Ryan Nijboer v Henri Squire | 2-6,3-6 |
| ITF M25 Trier | 2021/08/26 11:50 | Moez Echargui v Henri Squire | 6-3,1-6,2-6 |
| ITF M25 Trier | 2021/08/25 15:00 | Henri Squire v Oliver Crawford | 3-6,6-1,6-2 |
| ITF M25 Überlingen | 2021/08/22 12:00 | Ergi Kirkin v Henri Squire | 6-3,4-6,6-4 |
| ITF M25 Überlingen | 2021/08/20 14:45 | Louis Wessels v Henri Squire | 4-6,6-2,4-6 |
| ITF M25 Überlingen | 2021/08/19 08:00 | Henri Squire v Oriol Roca Batalla | 6-7,6-4,6-3 |
| ITF M25 Überlingen | 2021/08/18 08:00 | Henri Squire v Max Wiskandt | 6-4,6-3 |