Stadium: Court 6 Center Round: 54 Ground: Hardcourt indoor
| ITF M25 Toulouse | 2021/10/19 12:30 | Jurgen Briand v Robert Strombachs | 6-3,6-2 |
| ITF M25 Rodez | 2021/10/13 08:00 | Robert Strombachs v John Echeverria | 5-7,4-6 |
| ITF M25 Nevers | 2021/10/07 08:00 | Robert Strombachs v Antoine Escoffier | 1-6,3-6 |
| ITF M25 Nevers | 2021/10/06 13:00 | Robert Strombachs v Lisandru Rodriguez | 6-0,6-2 |
| ITF M15 Forbach | 2021/09/30 09:00 | Robert Strombachs v Arthur Bouquier | 7-6,4-6,4-6 |
| ITF M15 Forbach | 2021/09/28 09:55 | Robert Strombachs v Antoine Monaco | 6-4,6-2 |
| Davis Cup | 2021/09/18 08:00 | Altug Celikbilek v Robert Strombachs | 7-6,6-4 |
| ITF M15 Monastir | 2021/09/07 09:30 | Terence Atmane v Robert Strombachs | 6-2,7-6 |