Stadium: Court 4 Round: 44 Ground: Hardcourt outdoor
| ITF - M15 Monastir | 2021/02/28 08:00 | Dermiens, Guillaume v Corino, Marco | 6-0,6-2 |
| ITF - M15 Monastir | 2021/02/22 08:00 | Kazuma Kawachi v Dermiens, Guillaume | 7-6,5-7,10-8 |
| ITF - M15 Sharm El Sheikh | 2020/11/02 10:30 | Dermiens, Guillaume v Taha Baadi | 7-6,2-6,8-10 |
| ITF - M15 Sharm El Sheikh | 2020/11/01 12:00 | Leonid Sheyngezikht v Dermiens, Guillaume | 3-6,2-6 |
| ITF - M15 Sharm El Sheikh | 2020/10/25 09:00 | Dermiens, Guillaume v Tristan Boyer | 2-6,2-6 |
| ITF - M15 Sharm El Sheikh | 2020/10/19 07:00 | Evgeny Philippov v Dermiens, Guillaume | 6-4,1-6,10-8 |
| ITF - M15 Sharm El Sheikh | 2020/10/11 11:00 | Dermiens, Guillaume v Omni Kumar | 6-7,0-6 |
| ITF M15 Alkmaar | 2020/08/23 14:30 | Dermiens, Guillaume v Sidane Pontjodikromo | 2-6,2-6 |
| ITF - M15 Monastir | 2021/02/28 09:00 | Tinelli, Matteo v Kotzen, Alexander | 0-6,3-6 |
| ITF - M15 Monastir | 2021/02/25 12:25 | Giacalone, Omar v Kotzen, Alexander | 6-2,6-4 |
| ITF - M15 Monastir | 2021/02/24 07:55 | Kotzen, Alexander v Daniel Michalski | 6-3,6-4 |
| ITF - M15 Monastir | 2021/02/22 13:00 | Kotzen, Alexander v Martinez, Mirko | 6-3,6-4 |
| ITF - M15 Monastir | 2021/02/22 09:00 | Kotzen, Alexander v Tobias Franco | 6-0,6-3 |
| ITF - M15 Monastir | 2021/02/21 13:00 | Maiga, Riccardo v Kotzen, Alexander | 7-5,4-6,4-10 |
| ITF - M15 Monastir | 2021/02/17 08:00 | Oliver Crawford v Kotzen, Alexander | 2-6,6-1,6-3 |
| ITF - M15 Monastir | 2021/02/15 12:30 | Giacalone, Omar v Kotzen, Alexander | 6-3,4-6,7-10 |