| UK Pro League | 2021/09/13 12:30 | Johnson, Luke v Giles Hussey | 3-6,3-6 |
| Challenger Cassis | 2021/09/05 08:00 | Johnson, Luke v Alexis Galarneau | 3-6,4-6 |
| ITF M15 Allershausen | 2021/09/02 09:00 | Boehler, Dominik v Johnson, Luke | 6-3,6-3 |
| ITF M15 Allershausen | 2021/08/31 10:00 | Dafcik, Thomas Jan v Johnson, Luke | 5-7,0-6 |
| ITF M15 Oldenzaal | 2021/08/22 09:30 | Johnson, Luke v Damien Wenger | 2-6,3-6 |
| ITF M15 Oldenzaal | 2021/08/21 10:50 | Johnson, Luke v Lorenzo Bocchi | 4-6,6-1,6-0 |
| ITF M15 Oldenzaal | 2021/08/20 13:45 | Giles Hussey v Johnson, Luke | 6-3,0-6,3-6 |
| ITF M15 Oldenzaal | 2021/08/19 12:35 | Schmitz, Constantin v Johnson, Luke | 7-5,0-6,3-6 |
| UK Pro League | 2021/09/13 12:30 | Felix Mischker v Brady, Tiarnan | 5-7,1-6 |