Stadium: Center Court Round: 19 Ground: Clay
| ITF M15 Genova | 2021/06/20 08:00 | Johan Nikles v Luca Nardi | 4-6,2-6 |
| ITF M15 Genova | 2021/06/19 15:00 | Edoardo Eremin v Johan Nikles | 2-6,3-6 |
| ITF M15 Genova | 2021/06/18 11:30 | Johan Nikles v Dragos Nicolae Madaras | 7-5,3-6,7-5 |
| ITF M15 Genova | 2021/06/17 08:00 | Johan Nikles v Pedro Boscardin Dias | 6-3,6-3 |
| ITF M15 Genova | 2021/06/16 08:00 | Johan Nikles v Maxime Mora | 6-2,6-0 |
| ITF M25 Vic | 2021/05/18 09:35 | Johan Nikles v Miguel Damas | 6-3,7-6 |
| ITF M25 Vic | 2021/05/17 09:00 | Johan Nikles v Maxime Mora | 6-2,6-2 |
| ITF M15 Valldoreix | 2021/05/13 08:00 | Facundo Diaz Acosta v Johan Nikles | 6-4,6-2 |
| 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 New Delhi | 2021/04/01 04:30 | Dalibor Svrcina v Jonathan Mridha | 6-3,6-2 |
| ITF M15 New Delhi | 2021/03/31 07:20 | Suraj R Prabodh v Jonathan Mridha | 3-6,3-6 |
| ITF M15 Pune | 2021/03/27 04:25 | Zane Khan v Jonathan Mridha | 6-1,7-5 |