Stadium: Court 9 Round: 25 Ground: Hardcourt outdoor
| ITF M15 Kursumlijska Banja | 2023/08/30 09:05 | Gabriel Donev v Alessandro Bellifemine | 3-6,6-4,2-6 |
| ITF M15 Targu Jiu | 2023/08/15 13:45 | Lorenzo Joaquin Rodriguez v Gabriel Donev | 6-7,7-6,6-4 |
| ITF M15 Curtea de Arges | 2023/08/09 10:35 | Gabriel Donev v Luciano Emanuel Ambrogi | 0-6,4-6 |
| ITF M25 Pitesti | 2023/08/01 06:30 | Gabriel Donev v Quentin Folliot | 6-4,5-7,1-6 |
| ITF M15 Sofia | 2023/07/04 09:40 | Gabriel Donev v Denis Klok | 5-7,1-6 |
| ITF M15 Belgrade | 2023/06/28 12:30 | Miljan Zekic v Gabriel Donev | 6-4,6-3 |
| ITF M15 Kursumlijska Banja | 2023/06/17 17:15 | Gabriel Donev v Marat Sharipov | 3-6,4-6 |
| ITF M15 Kursumlijska Banja | 2023/06/17 12:00 | Lautaro Midon v Gabriel Donev | 0-6,5-7 |
| ITF M15 Allershausen | 2023/09/01 15:25 | Kai Lemstra v Daniel De Jonge | 7-5,6-1 |
| ITF M15 Allershausen | 2023/08/31 10:00 | Mark Wallner v Daniel De Jonge | 5-7,2-6 |
| ITF M15 Allershausen | 2023/08/30 10:00 | Daniel De Jonge v Dominik Boehler | 6-4,7-6 |
| ITF M15 Huy | 2023/08/24 09:00 | Buvaysar Gadamauri v Daniel De Jonge | 6-4,6-3 |
| ITF M15 Huy | 2023/08/23 09:00 | Daniel De Jonge v Noah Merre | 1-6,6-2,6-0 |
| ITF M15 Huy | 2023/08/21 15:20 | Daniel De Jonge v Ruben Hartig | 6-3,5-7,5-10 |
| ITF M25 Koksijde | 2023/08/13 12:15 | Daniel De Jonge v Mats Bredschneijder | 4-6,6-1,5-10 |
| ITF M15 Eindhoven | 2023/08/01 11:35 | Daniel De Jonge v Maxime Mora | 6-1,5-7,1-6 |