Stadium: Court 1 Round: 54 Ground: Clay
| ITF M15 Grenoble | 2021/02/07 15:00 | Constantin Bittoun Kouzmine v Vincent Stouff | 2-6,4-6 |
| ITF M15 Cairo | 2021/01/11 08:00 | Constantin Bittoun Kouzmine v Sergi Perez Contri | 1-6,2-6 |
| ITF M15 Cairo | 2021/01/10 09:30 | Constantin Bittoun Kouzmine v Edoardo Lavagno | 2-6,6-4,10-6 |
| ITF M15 Cairo | 2021/01/04 12:00 | Edoardo Lavagno v Constantin Bittoun Kouzmine | 6-4,4-6,10-6 |
| ITF M15 Cairo | 2021/01/04 08:00 | Omar El-Moslemany v Constantin Bittoun Kouzmine | 1-6,0-6 |
| ITF M15 Monastir | 2020/12/02 12:05 | Constantin Bittoun Kouzmine v Kristjan Tamm | 2-6,3-6 |
| ITF M15 Monastir | 2020/11/30 12:00 | Constantin Bittoun Kouzmine v Mathieu Scaglia | 6-3,6-1 |
| ITF M15 Monastir | 2020/11/30 08:00 | Alibek Kachmazov v Constantin Bittoun Kouzmine | 1-6,0-6 |
| ITF M15 Monastir | 2021/01/31 11:00 | Bjorn Nareyka v Mohamed Amin Oueslati | 3-6,6-2,8-10 |
| Austrian Tennis Championship | 2020/07/20 15:00 | Bjorn Nareyka v Sandro Kopp | 4-6,2-6 |
| Austrian Tennis Championship | 2020/07/14 14:55 | Bjorn Nareyka v Niklas Waldner | 7-6,1-6,0-6 |
| Austrian Tennis Championship | 2020/07/07 11:05 | Bjorn Nareyka v Sandro Kopp | 2-6,2-6 |
| ITF M15 Heraklion | 2020/03/10 11:20 | Bjorn Nareyka v Gian Luca Tanner | 3-6,1-6 |
| ITF M15 Heraklion | 2020/03/10 08:00 | Simon Beaupain v Bjorn Nareyka | 4-6,5-7 |
| ITF M15 Heraklion | 2020/03/08 08:30 | Stephanos Schinas v Bjorn Nareyka | 3-6,4-6 |
| ITF M15 Heraklion | 2020/03/01 08:30 | Andrea Del Federico v Bjorn Nareyka | 4-6,6-2,10-8 |