Stadion: Court 1 Round: 29 Ground: Hardcourt outdoor
| 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 - 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 - M15 - Sozopol | 2021/09/18 08:00 | Valentin Vacherot v Ryan James Storrie | 2-6,2-6 |
| ITF - M15 - Sozopol | 2021/09/16 08:05 | Ryan James Storrie v Bogdan Ionut Apostol | 6-3,6-1 |
| ITF - M15 - Sozopol | 2021/09/15 07:00 | Vladimir Korolev v Ryan James Storrie | 6-0,3-6,2-6 |
| ITF - M25 - Bagneres-De-Bigorre | 2021/08/31 09:30 | Ryan James Storrie v Clement Chidekh | 2-6,2-6 |
| UTR Pro Tennis Series - Kalifornien | 2021/02/28 19:30 | Alexander Sarkissian v Ryan James Storrie | 5-7,3-2 |
| UTR Pro Tennis Series - Kalifornien | 2021/02/27 21:30 | Ryan James Storrie v Nicolas Barrientos | 2-6,6-1,3-0 |
| UTR Pro Tennis Series - Kalifornien | 2021/02/26 22:00 | Gage Brymer v Ryan James Storrie | 3-6,6-6 |
| UTR Pro Tennis Series - Kalifornien | 2021/02/25 16:50 | Alejandro Mendoza v Ryan James Storrie | 1-6,1-6 |