Stadium: Center Court Round: 54 Ground: Hardcourt indoor
| ITF M25 Plaisir | 2021/09/12 14:10 | Oscar Moraing v Leo Doukhan | 6-1,6-3 |
| ITF M15 Forbach | 2021/09/26 12:50 | Alex Knaff v Julien De Cuyper | 6-4,6-0 |
| UTR Pro Tennis Series Mulheim | 2021/09/25 07:00 | Julien De Cuyper v Lawrence Bataljin | 0-6,0-6 |
| UTR Pro Tennis Series Mulheim | 2021/09/24 13:30 | George Botezan v Julien De Cuyper | 6-4,6-1 |
| UTR Pro Tennis Series Mulheim | 2021/09/23 12:30 | Pablo Carretero v Julien De Cuyper | 6-3,6-3 |
| UTR Pro Tennis Series Mulheim | 2021/09/22 11:00 | Jing L Weng v Julien De Cuyper | 6-1,5-4 |
| ITF M25 Plaisir | 2021/09/12 07:55 | Liova Ajavon v Julien De Cuyper | 3-6,6-2,10-6 |
| UTR Pro Tennis Series Sofia | 2021/09/01 09:30 | Milen Ianakiev v Julien De Cuyper | 6-3,5-1 |
| UTR Pro Tennis Series Sofia | 2021/08/31 09:30 | Yurii Dzhavakian v Julien De Cuyper | 6-0,5-0 |