Stadium: Court 5 Round: 25 Ground: Hardcourt outdoor
| ITF M25 Eupen | 2021/09/08 07:30 | Guy Den Heijer v Kai Wehnelt | 3-6,6-3,6-2 |
| ITF M25 Trier | 2021/08/26 11:00 | Quentin Folliot v Kai Wehnelt | 7-5,4-6,7-5 |
| ITF M25 Trier | 2021/08/24 13:30 | Kai Wehnelt v Sarp Agabigun | 6-0,6-4 |
| ITF M15 Oldenzaal | 2021/08/18 14:30 | Kai Wehnelt v Daniel De Jonge | 5-7,6-1,6-7 |
| ITF M25 Frankfurt am Main | 2021/08/11 15:30 | Kai Wehnelt v Lucas Gerch | 6-3,2-6,4-6 |
| ITF M25 Wetzlar | 2021/08/04 08:00 | Harold Mayot v Kai Wehnelt | 6-4,6-7,7-5 |
| ITF M15 Cairo | 2021/07/29 08:00 | Gustavo Heide v Kai Wehnelt | 3-6,7-5,6-3 |
| ITF M15 Cairo | 2021/07/28 14:20 | Facundo Arias Bisso v Kai Wehnelt | 5-7,5-7 |
| ITF M15 Telavi | 2021/08/04 06:30 | Simon A Ivanov v Zura Tkemaladze | 7-5,6-1 |
| ITF M15 Telavi | 2021/08/03 06:05 | Zura Tkemaladze v Danil Spasibo | 6-2,6-4 |
| ITF M25 Telavi | 2021/07/31 13:50 | Zura Tkemaladze v Alexandar Lazarov | 2-6,1-6 |
| ITF M25 Telavi | 2021/07/31 07:50 | Alibek Kachmazov v Zura Tkemaladze | 2-6,6-7 |
| ITF M25 Telavi | 2021/07/27 09:05 | Zura Tkemaladze v Issei Okamura | 7-6,6-3 |
| ITF M25 Marburg | 2021/07/05 08:00 | Paul Woerner v Zura Tkemaladze | 6-3,5-7,10-7 |
| ITF M15 Tbilisi | 2021/05/20 07:55 | Zura Tkemaladze v Yanki Erel | 4-6,4-6 |
| ITF M15 Tbilisi | 2021/05/19 06:00 | Zura Tkemaladze v Alexander Boborykin | 6-3,3-6,6-3 |