Stadium: Court 22 Round: 25 Ground: Clay
| ITF M25 Sharm El Sheikh | 2023/09/20 07:00 | Daniil Ostapenkov v Andrea Guerrieri | 6-7,0-6 |
| ITF M25 Monastir | 2023/09/16 08:30 | Robin Bertrand v Daniil Ostapenkov | 6-2,6-0 |
| ITF M25 Monastir | 2023/09/15 08:30 | Daniel Khazime v Daniil Ostapenkov | 4-6,4-6 |
| ITF M25 Monastir | 2023/09/14 08:30 | Stefano Reitano v Daniil Ostapenkov | 2-6,5-7 |
| ITF M25 Monastir | 2023/09/13 08:30 | Daniil Ostapenkov v Ilya Snitari | 7-5,6-3 |
| ITF M25 Monastir | 2023/09/08 08:30 | Daniil Ostapenkov v Kris Van Wyk | 3-6,2-6 |
| ITF M25 Monastir | 2023/09/07 10:30 | Daniil Ostapenkov v Timur Maulenov | 6-1,6-1 |
| ITF M15 Novi Sad | 2023/07/31 15:40 | Daniil Ostapenkov v Samuel Puskar | 3-6,4-6 |
| ITF M25 Antalya | 2023/11/13 08:30 | Marko Maksimovic v Marsel Ilhan | 7-6,7-5 |
| ITF M25 Antalya | 2023/11/12 07:00 | Maxim Krapivin v Marsel Ilhan | 2-6,6-7 |
| ITF M15 Antalya | 2023/11/07 11:40 | Marsel Ilhan v Matyas Fuele | 6-7,1-6 |
| Challenger Istanbul | 2023/09/05 08:40 | Marsel Ilhan v Jesper De Jong | 2-6,7-6,2-6 |
| Challenger Istanbul | 2023/09/04 08:40 | Omni Kumar v Marsel Ilhan | 3-6,7-5,5-7 |
| Challenger Istanbul | 2023/09/03 13:15 | Marsel Ilhan v Khumoyun Sultanov | 6-4,6-2 |
| ITF M15 Monastir | 2023/07/16 08:00 | Andrea Fiorentini v Marsel Ilhan | 3-6,3-6 |
| ITF M15 Monastir | 2023/07/10 15:30 | Marsel Ilhan v Martin Borisiouk | 4-6,5-7 |