Stadium: Court 3 Round: 25 Ground: Clay
| ITF Serbia F2 | 2018/08/15 08:00 | Gabriel Donev v Duje Ajdukovic | 6-3,4-6,2-6 |
| ITF Belgium F5 | 2018/07/24 14:00 | Colin Sinclair v Gabriel Donev | 6-3,6-4 |
| ITF Germany F5 | 2018/06/28 11:00 | Gabriel Donev v Bergevi, Filip | 2-6,4-6 |
| ITF Germany F5 | 2018/06/27 11:35 | Igoshin, Alexander v Gabriel Donev | 2-6,2-6 |
| ITF Germany F5 | 2018/06/25 08:00 | Gabriel Donev v August Holmgren | 6-2,7-6 |
| ITF Germany F5 | 2018/06/25 08:00 | Gabriel Donev v Karlo Cubelic | 6-2,6-2 |
| ITF Romania F1 | 2018/05/22 09:20 | Gabriel Donev v Perchicot, Mathieu | 3-6,1-6 |
| ITF Bulgaria F1 | 2018/05/18 09:10 | Manda, Calin v Gabriel Donev | 6-1,2-6,6-2 |
| ITF Serbia F3 | 2018/08/20 08:00 | Jandric, Darko v Zarkovic, Bodin | 5-7,1-6 |
| ITF Serbia F3 | 2018/08/18 07:00 | Jandric, Darko v Banicevic, Igor | 6-2,6-0 |
| ITF Italy F23 | 2018/08/15 07:30 | Jandric, Darko v Mora, Maxime | 7-6,4-6,3-6 |
| ITF Italy F23 | 2018/08/14 07:30 | Jandric, Darko v Rieder, Horst | 6-4,1-6,6-3 |
| ITF Spain F22 | 2018/08/09 18:00 | Shropshire, Samuel v Jandric, Darko | 6-1,6-1 |
| ITF Spain F22 | 2018/08/07 16:00 | Jandric, Darko v Martinez Sarrasague, Felipe | 7-5,6-2 |
| ITF Portugal F13 | 2018/08/01 14:50 | Jandric, Darko v Cabral, Francisco | 4-6,3-6 |
| Sri Lanka F3, Singles Qualifying | 2018/06/26 04:00 | Perez Sanz, David v Jandric, Darko | 6-4,7-5 |