Stadium: Court 1 Round: 14 Ground: Hardcourt outdoor
| ITF M15 Gurugram | 2021/11/27 04:30 | Dusty H. Boyer v Nitin Kumar Sinha | 4-6,6-3,6-4 |
| ITF M15 Gurugram | 2021/11/26 04:30 | Nitin Kumar Sinha v Nicolas Tepmahc | 3-6,6-4,6-2 |
| ITF M15 Gurugram | 2021/11/25 04:00 | S D Prajwal Dev v Nitin Kumar Sinha | 4-6,6-3,6-7 |
| ITF M15 Gurugram | 2021/11/24 03:30 | Nitin Kumar Sinha v Bharath Nishok Kumaran | 4-6,6-3,6-4 |
| ITF M15 New Delhi | 2021/11/19 06:10 | Nitin Kumar Sinha v Vishnu Vardhan | 6-7,6-2,5-7 |
| ITF M15 New Delhi | 2021/11/18 05:50 | Eric Vanshelboim v Nitin Kumar Sinha | 6-3,6-7,0-6 |
| ITF M15 New Delhi | 2021/11/17 07:10 | Alexis Canter v Nitin Kumar Sinha | 6-4,2-6,6-7 |
| ITF M15 Indore | 2021/11/11 05:50 | Nitin Kumar Sinha v S D Prajwal Dev | 3-6,6-7 |
| Challenger Bengaluru | 2022/02/06 04:30 | Frederico Ferreira Silva v Kai Wehnelt | 6-4,6-2 |
| German Championship | 2021/12/11 12:00 | Kai Wehnelt v Henri Squire | 7-6,1-6,6-7 |
| German Championship | 2021/12/10 14:00 | Marko Topo v Kai Wehnelt | 6-2,1-6,5-7 |
| German Championship | 2021/12/09 10:00 | Michael Weindl v Kai Wehnelt | 3-6,1-6 |
| German Championship | 2021/12/08 13:00 | Jannik Maute v Kai Wehnelt | 2-6,4-6 |
| ITF M15 Heraklion | 2021/12/03 08:00 | Kai Wehnelt v Charles Broom | 4-6,2-6 |
| ITF M15 Heraklion | 2021/12/02 07:00 | Kai Wehnelt v Pijus Vaitiekunas | 6-1,6-2 |
| ITF M15 Heraklion | 2021/12/01 07:00 | Kai Wehnelt v Dong Ju Kim | 6-4,7-6 |