Stadion: S+S Court Round: 26 Ground: Clay
| ITF - M25 - Marburg | 2021/07/06 17:25 | Jonathan Mridha v Wilson Leite | 6-2,6-4 |
| ITF - M15 - Monastir | 2021/04/29 08:30 | Arthur Bouquier v Jonathan Mridha | 3-6,6-4,6-4 |
| ITF - M15 - Monastir | 2021/04/28 08:25 | Alexander Donski v Jonathan Mridha | 5-7,7-6,6-7 |
| ITF - M15 - Monastir | 2021/04/23 14:00 | Oscar Jose Gutierrez v Jonathan Mridha | 6-4,6-3 |
| ITF - M15 - Monastir | 2021/04/22 08:30 | Pierre Antoine Tailleu v Jonathan Mridha | 0-6,1-6 |
| ITF - M15 - Monastir | 2021/04/21 10:00 | Mirko Martinez v Jonathan Mridha | 4-6,1-6 |
| ITF - M15 - Neu-Delhi | 2021/04/01 04:30 | Dalibor Svrcina v Jonathan Mridha | 6-3,6-2 |
| ITF - M15 - Neu-Delhi | 2021/03/31 07:20 | Suraj R Prabodh v Jonathan Mridha | 3-6,3-6 |
| ITF - M25 - Marburg | 2021/07/07 11:50 | Marvin Netuschil v Alejandro Gonzalez | 6-7,6-4,6-1 |
| ITF - M25 - Den Haag | 2021/06/27 08:00 | Marvin Netuschil v Alec Deckers | 6-4,6-2 |
| ITF - M15 - Bergamo | 2021/06/25 10:00 | Federico Arnaboldi v Marvin Netuschil | 7-6,6-4 |
| ITF - M15 - Bergamo | 2021/06/24 08:00 | Marvin Netuschil v Daniele Capecchi | 6-1,6-0 |
| ITF - M15 - Bergamo | 2021/06/23 09:00 | Andrea Basso v Marvin Netuschil | 6-1,2-6,2-6 |
| ITF - M15 - Troisdorf | 2021/05/13 13:25 | Marvin Netuschil v Sebastian Fanselow | 2-6,1-6 |
| ITF - M15 - Troisdorf | 2021/05/12 13:30 | Marvin Netuschil v Amaury Raynel | 6-1,6-3 |
| ITF - M15 - LPD Gran Canaria | 2021/04/28 09:55 | Johan Nikles v Marvin Netuschil | 6-3,6-2 |