Stadium: Court 7 Round: 27 Ground: Hardcourt outdoor
| ITF M15 - Sozopol | 2021/10/07 07:00 | Kai Wehnelt v George Tsivadze | 6-3,6-1 |
| ITF M15 - Sozopol | 2021/10/05 09:00 | Kai Wehnelt v Dian Nedev | 6-3,6-3 |
| Challenger Sibiu | 2021/09/27 07:00 | Kai Wehnelt v Stefan Palosi | 6-7,7-6,2-6 |
| ITF M15 - Sozopol | 2021/09/19 07:00 | Kai Wehnelt v Ryan James Storrie | 4-6,6-0,2-6 |
| ITF M15 - Sozopol | 2021/09/18 07:00 | Kai Wehnelt v Martin Krumich | 6-4,6-2 |
| ITF M15 - Sozopol | 2021/09/17 07:00 | Kai Wehnelt v Calin Manda | 4-6,6-4,6-1 |
| ITF M15 - Sozopol | 2021/09/16 07:00 | Kai Wehnelt v Joshua Paris | 6-2,6-4 |
| ITF M15 - Sozopol | 2021/09/14 09:00 | Kai Wehnelt v Zura Tkemaladze | 6-2,6-2 |
| ITF M15 - Sozopol | 2021/10/07 09:30 | Ilya Snitari v Ben Patael | 6-3,6-2 |
| ITF M15 - Sozopol | 2021/10/06 10:50 | Ilya Snitari v Berk Ilkel | 3-6,6-4,6-0 |
| ITF M15 - Vyshkovo | 2021/09/23 10:00 | Ilya Snitari v Oleg Prihodko | 7-5,3-6,1-6 |
| ITF M15 - Vyshkovo | 2021/09/22 11:00 | Ilya Snitari v Vlad Andrei Dumitru | 7-5,6-1 |
| ITF M15 - Chornomorsk | 2021/09/05 08:00 | Ilya Snitari v Illya Beloborodko | 6-7,6-7 |
| ITF M15 - Chornomorsk | 2021/09/03 07:00 | Ilya Snitari v Federico Campana | 6-2,6-1 |
| ITF M15 - Chornomorsk | 2021/09/02 09:50 | Aleksandr Braynin v Ilya Snitari | 6-2,1-6,2-6 |
| ITF M15 - Chornomorsk | 2021/08/31 07:00 | Koray Kirci v Ilya Snitari | 1-6,5-7 |