Stadium: Court 3 Round: 26 Ground: Clay
| ITF M25 Poznan | 2024/08/21 17:10 | Kacper Szymkowiak v Daniil Ostapenkov | 1-6,6-3,1-6 |
| ITF M15 Bielsko Biala | 2024/08/14 10:10 | Olaf Pieczkowski v Daniil Ostapenkov | 6-2,6-4 |
| ITF M15 Antalya | 2024/05/15 08:35 | Daniil Ostapenkov v Marsel Ilhan | 6-7,0-6 |
| ITF M15 Antalya | 2024/05/11 10:00 | Marlon Vankan v Daniil Ostapenkov | 6-3,6-2 |
| ITF M15 Antalya | 2024/05/09 06:45 | Daniil Ostapenkov v Michael Agwi | 6-0,0-6,6-3 |
| ITF M15 Antalya | 2024/05/07 10:40 | Matteo Rozo Torres v Daniil Ostapenkov | 1-6,1-6 |
| ITF M15 Antalya | 2024/05/01 09:55 | Kuzey Cekirge v Daniil Ostapenkov | 6-3,6-4 |
| ITF M15 Aktobe | 2024/03/16 06:00 | Ilia Simakin v Daniil Ostapenkov | 6-3,6-4 |
| ITF M25 Poznan | 2024/08/20 08:00 | Jiri Barnat v Guy Den Ouden | 2-6,2-6 |
| ITF M25 Koksijde | 2024/08/18 13:00 | Raphael Collignon v Guy Den Ouden | 7-6,6-1 |
| ITF M25 Koksijde | 2024/08/16 14:40 | Gilles Arnaud Bailly v Guy Den Ouden | 4-6,2-6 |
| ITF M25 Koksijde | 2024/08/15 12:20 | Fadi Bidan v Guy Den Ouden | 3-6,6-3,1-6 |
| ITF M25 Koksijde | 2024/08/13 08:00 | Martin Van Der Meerschen v Guy Den Ouden | 5-7,6-7 |
| Challenger Amersfoort | 2024/07/18 17:00 | Guy Den Ouden v Tomas Barrios Vera | 0-6,6-7 |
| Challenger Amersfoort | 2024/07/17 11:00 | Guy Den Ouden v Francesco Maestrelli | 6-1,6-4 |
| ITF M25 The Hague | 2024/07/13 18:10 | Guy Den Ouden v Alex M Pujolras | 3-6,6-2,4-6 |