Stadium: Court 3 Round: 25 Ground: Hardcourt outdoor
| 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 |
| ITF M15 New Delhi | 2021/03/28 10:30 | Dalwinder Singh v Suraj R Prabodh | 4-6,3-6 |
| ITF M15 New Delhi | 2021/03/28 05:00 | Dalwinder Singh v Bharath Nishok Kumaran | 6-3,6-4 |
| ITF M15 Indore | 2021/03/11 04:00 | Dalwinder Singh v Luca Castelnuovo | 4-6,3-6 |
| ITF M15 Indore | 2021/03/09 04:00 | Raghav Jaisinghani v Dalwinder Singh | 3-6,0-6 |
| ITF M15 Lucknow | 2021/03/04 04:00 | Dalwinder Singh v Sidharth Rawat | 6-7,5-7 |
| ITF M15 Lucknow | 2021/03/03 04:00 | Dalwinder Singh v Vinayak Sharma Kaza | 7-6,6-3 |
| ITF M15 Lucknow | 2021/03/01 04:00 | Dalwinder Singh v Jonathan Binding | 2-6,6-4,10-7 |
| ITF M15 Lucknow | 2021/02/28 07:50 | Dalwinder Singh v Vishnu Vardhan | 6-2,6-7,10-5 |