Stadion: Court 6 Round: 26 Ground: Hardcourt outdoor
| 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 |
| ITF - M15 - Teheran | 2023/06/15 06:30 | Erik Arutiunian v Koray Kirci | 6-2,6-4 |
| ITF - M25 - Bodrum | 2023/05/23 06:30 | Valentin Vacherot v Koray Kirci | 6-1,6-4 |
| ITF - M15 - Antalya | 2023/05/17 08:40 | Jaime Caldes v Koray Kirci | 6-3,6-2 |
| ITF - M15 - Doha | 2023/10/04 13:25 | Christian Sigsgaard v Issa Shanan Al Harrasi | 6-0,6-1 |
| ITF - M25 - Falun | 2023/09/26 12:00 | Giles Hussey v Christian Sigsgaard | 4-6,6-2,7-5 |
| ITF - M15 - Eindhoven | 2023/08/02 14:00 | Christian Sigsgaard v Tom Gentzsch | 6-2,4-6,3-6 |
| ITF - M15 - Eindhoven | 2023/08/01 10:25 | Pepijn Bastiaansen v Christian Sigsgaard | 2-6,3-6 |
| ITF - M15 - Vejle | 2023/07/29 09:25 | Christian Sigsgaard v Elmer Moller | 2-6,3-6 |
| ITF - M15 - Vejle | 2023/07/28 08:00 | Christian Sigsgaard v Maxence Rivet | 6-3,6-1 |
| ITF - M15 - Vejle | 2023/07/27 12:50 | Georgii Kravchenko v Christian Sigsgaard | 4-6,3-6 |
| ITF - M15 - Vejle | 2023/07/26 09:25 | Eero Vasa v Christian Sigsgaard | 6-7,2-6 |