Stadium: CC Round: 25 Ground: Clay
| ITF M15 Sibenik | 2021/04/20 11:05 | Marvin Moeller v Sean Cuenin | 6-2,6-7,2-6 |
| ITF M25 Meerbusch | 2021/04/13 13:30 | Tak Khunn Wang v Marvin Moeller | 6-4,6-3 |
| ITF M25 Biel | 2021/03/29 12:05 | Yann Marti v Marvin Moeller | 6-4,6-7,10-5 |
| ITF M15 Poitiers | 2021/03/19 13:10 | Kyrian Jacquet v Marvin Moeller | 6-2,6-3 |
| ITF M15 Poitiers | 2021/03/17 10:30 | Marvin Moeller v Jean-Jacques Rakotohasy | 6-2,6-1 |
| ITF M25 Trimbach | 2021/03/11 12:00 | Dominic Stephan Stricker v Marvin Moeller | 6-1,6-4 |
| ITF M25 Trimbach | 2021/03/10 09:00 | Patrik Hartmeier v Marvin Moeller | 1-6,7-6,2-6 |
| ITF M15 Monastir | 2021/02/16 13:00 | Marvin Moeller v Naoki Tajima | 2-6,3-6 |
| ITF M15 Troisdorf | 2021/05/10 11:00 | Leopold Zima v Yannik Steinegger | 2-6,6-7 |
| ITF M15 Troisdorf | 2021/05/09 13:00 | Leopold Zima v Julien De Cuyper | 6-4,6-4 |
| ITF M15 Antalya | 2021/04/25 07:00 | Michel Vernier v Leopold Zima | 4-6,7-6,10-4 |
| ITF M15 Antalya | 2021/04/20 07:00 | Samuel Vincent Ruggeri v Leopold Zima | 6-3,3-6,11-9 |
| ITF M15 Antalya | 2021/04/19 07:00 | Leopold Zima v Aleksandre Bakshi | 7-6,6-4 |
| ITF M15 Antalya | 2021/04/18 07:00 | Leopold Zima v Ivan Kazakov | 6-0,6-3 |
| ITF M25 Meerbusch | 2021/04/12 09:30 | Alexey Vatutin v Leopold Zima | 6-4,6-2 |
| ITF M25 La Nucia | 2021/03/19 11:55 | Carlos Gimeno Valero v Leopold Zima | 6-0,6-1 |