Ground: Hardcourt outdoor
| ITF M15 Doha | 2023/10/11 12:00 | Marat Sharipov v Koray Kirci | 6-2,6-1 |
| ITF M15 Doha | 2023/10/09 18:00 | Lasse Poertner v Koray Kirci | 6-3,4-6,2-6 |
| ITF M15 Doha | 2023/10/05 12:30 | Koray Kirci v Christian Sigsgaard | 6-7,1-6 |
| ITF M15 Sharm El Sheikh | 2023/09/27 10:40 | Daniel Ibragimov v Koray Kirci | 5-7,2-6 |
| ITF M25 Sharm El Sheikh | 2023/09/20 08:30 | Yanki Erel v Koray Kirci | 6-4,3-6,6-3 |
| Challenger Istanbul | 2023/09/06 09:35 | Denis Yevseyev v Koray Kirci | 6-2,7-6 |
| Challenger Istanbul | 2023/09/05 08:35 | Leo Borg v Koray Kirci | 1-6,6-3,3-6 |
| Challenger Astana | 2023/07/25 07:20 | Dmitry Popko v Koray Kirci | 6-4,4-6,6-1 |
| UTR Pro Beograd | 2023/10/11 07:30 | Stefan Popovic v Christos Keisidis | 6-3,6-2 |
| UTR Pro Beograd | 2023/10/10 12:40 | Tadija Radovanovic v Christos Keisidis | 4-6,3-6 |
| UTR Pro Beograd | 2023/10/08 09:00 | Christos Keisidis v Domagoj Biljesko | 4-6,0-6 |
| UTR Pro Beograd | 2023/10/04 08:44 | Christos Keisidis v Ilya Snitari | 2-6,0-6 |
| UTR Pro Beograd | 2023/10/03 07:30 | Christos Keisidis v Drazen Petrovic | 2-6,5-7 |
| UTR Pro Beograd | 2023/10/02 06:00 | Christos Keisidis v Zoran Ludoski | 4-6,6-7 |
| UTR Pro Olomouc | 2023/09/17 07:30 | Mikolaj Lis v Christos Keisidis | 1-6,3-6 |
| UTR Pro Olomouc | 2023/09/16 10:52 | Christos Keisidis v Jakub Novak | 6-4,7-6 |