Stadium: Court 6 Round: 62 Ground: Clay
| ITF M15 Cairo | 2021/09/20 09:00 | Volodymyr Uzhylovskyi v Adrian Oetzbach | 6-4,0-6,6-10 |
| ITF M15 Cairo | 2021/09/15 11:05 | Adrian Oetzbach v Quentin Folliot | 3-6,7-6,4-6 |
| ITF M15 Cairo | 2021/09/14 07:00 | Adrian Oetzbach v Tarun Anirudh Chilakalapudi | 6-0,6-0 |
| ITF M15 Cairo | 2021/09/13 07:00 | Nitin Kumar Sinha v Adrian Oetzbach | 5-7,6-3,11-13 |
| ITF M15 Cairo | 2021/09/12 07:00 | Adrian Oetzbach v Alessio De Bernardis | 6-0,6-2 |
| ITF M25 Eupen | 2021/09/06 09:45 | Juan Ignacio Galarza v Adrian Oetzbach | 7-6,6-3 |
| ITF M25 Eupen | 2021/09/05 10:30 | Moritz Poswiat v Adrian Oetzbach | 0-6,3-6 |
| ITF M15 Allershausen | 2021/09/01 09:00 | Manish Sureshkumar v Adrian Oetzbach | 3-6,6-4,6-4 |
| ITF M15 Cairo | 2021/09/20 08:00 | Karan Singh v Lorenzo Gagliardo | 6-4,5-7,10-8 |
| ITF M15 Cairo | 2021/09/19 10:30 | Karan Singh v Leyton Rivera | 6-2,6-3 |
| ITF M15 Cairo | 2021/09/12 11:00 | Krittin Koaykul v Karan Singh | 1-6,6-3,10-6 |
| ITF M15 Cairo | 2021/09/06 07:30 | Valerio Aboian v Karan Singh | 6-7,6-3,10-3 |
| ITF M15 Cairo | 2021/09/05 07:30 | Jordan Chiu v Karan Singh | 6-3,1-6,4-10 |
| ITF M15 Pune | 2021/03/23 06:10 | Filip Bergevi v Karan Singh | 6-2,7-5 |