Stadium: Court 7 Round: 25 Ground: Clay
| 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 Monastir | 2021/02/09 10:30 | Lukas Mugevicius v Marvin Moeller | 6-3,6-2 |
| ITF M25 Reus | 2021/04/14 08:00 | Sean Cuenin v Javier Barranco Cosano | 1-6,3-6 |
| ITF M25 Reus | 2021/04/13 07:30 | Sean Cuenin v Louis Dussin | 6-1,7-6 |
| ITF M25 Reus | 2021/04/12 07:30 | Alexander Weis v Sean Cuenin | 2-6,6-4,10-3 |
| ITF M25 Reus | 2021/04/11 10:00 | Xavier Gabarro v Sean Cuenin | 1-6,1-6 |
| ITF M15 Antalya | 2021/02/25 07:00 | Sean Cuenin v Matias Zukas | 2-6,2-6 |
| ITF M15 Antalya | 2021/02/24 06:55 | Yunseong Chung v Sean Cuenin | 6-3,3-6,4-6 |
| ITF M15 Antalya | 2021/02/17 07:00 | Matias Zukas v Sean Cuenin | 7-5,6-0 |
| ITF M15 Antalya | 2021/02/09 13:45 | Sean Cuenin v Nerman Fatic | 1-6,4-6 |