Stadium: Court 09 Round: 28 Ground: Clay
| 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 Wetzlar | 2021/08/06 15:55 | Constantin Schmitz v Peter Heller | 3-6,7-5,1-6 |
| ITF M25 Wetzlar | 2021/08/05 09:00 | Georgii Kravchenko v Peter Heller | 6-7,2-6 |
| ITF M25 Wetzlar | 2021/08/04 08:00 | Marvin Moeller v Peter Heller | 2-6,3-6 |
| ITF M15 Warmbad-Villach | 2021/08/20 12:50 | Gabriel Decamps v Lukas Krainer | 6-2,6-3 |
| ITF M15 Warmbad-Villach | 2021/08/19 10:45 | Daniele Capecchi v Gabriel Decamps | 7-5,2-6,2-6 |
| ITF M15 Warmbad-Villach | 2021/08/18 12:45 | Gabriel Decamps v Jonas Trinker | 6-1,7-6 |
| ITF M15 Warmbad-Villach | 2021/08/17 08:00 | Martin Zeljenka v Gabriel Decamps | 2-6,2-6 |
| ITF M15 Warmbad-Villach | 2021/08/15 07:00 | Jonas Greif v Gabriel Decamps | 0-6,2-6 |
| ITF M15 Frederiksberg | 2021/08/04 07:50 | Benjamin Hannestad v Gabriel Decamps | 6-4,6-2 |
| ITF M15 Frederiksberg | 2021/08/02 12:35 | Gabriel Decamps v Benedikt Emesz | 6-1,6-4 |
| ITF M15 Frederiksberg | 2021/08/01 10:00 | Gabriel Decamps v Simon Friis Soendergaard | 6-4,6-2 |