Stadium: Court 2 Round: 62 Ground: Clay
| ITF M15 Antalya | 2021/10/25 09:00 | Koray Kirci v Amer Naow | 6-3,6-3 |
| ITF M15 Antalya | 2021/10/24 07:00 | Koray Kirci v Kevin Portmann | 6-1,6-1 |
| ITF M25 Skopje | 2021/09/29 07:30 | Luigi Sorrentino v Koray Kirci | 6-2,6-2 |
| Challenger Istanbul | 2021/09/14 07:50 | Marc Polmans v Koray Kirci | 6-3,6-2 |
| ITF M15 Chornomorsk | 2021/08/31 07:00 | Koray Kirci v Ilya Snitari | 1-6,5-7 |
| ITF M15 Novi Sad | 2021/08/03 08:00 | Koray Kirci v Lukas Palovic | 6-3,4-6,7-10 |
| ITF M15 Novi Sad | 2021/08/02 11:00 | Koray Kirci v Aleksandr Kalinin | 6-4,6-2 |
| ITF M15 Novi Sad | 2021/08/01 07:00 | Koray Kirci v Matic Dimic | 7-6,6-4 |
| ITF M15 Antalya | 2021/10/25 08:50 | Vitek Horak v Antonin Bolardt | 2-6,1-6 |
| ITF M15 Antalya | 2021/10/24 07:00 | Shunsuke Wakita v Antonin Bolardt | 2-6,3-6 |
| ITF M15 Antalya | 2021/10/20 09:05 | Antonin Bolardt v Daniel Michalski | 3-6,2-6 |
| ITF M15 Antalya | 2021/10/19 07:00 | Oscar Galimardanov v Antonin Bolardt | 2-6,3-6 |
| ITF M15 Antalya | 2021/10/18 07:00 | Daniil Gusev v Antonin Bolardt | 0-6,0-6 |
| ITF M15 Antalya | 2021/10/17 07:00 | Matias P D L Gomila v Antonin Bolardt | 4-6,6-3,7-10 |
| ITF M15 Antalya | 2021/10/12 07:00 | Antonin Bolardt v Hasan Ibrahim | 1-6,4-6 |
| ITF M15 Antalya | 2021/10/11 13:20 | Antonin Bolardt v Philipp Pavlenko | 6-2,6-3 |