Stadium: Court 1 Round: 27 Ground: Hardcourt outdoor
| ITF Bulgaria F1 | 2018/05/17 10:45 | Oreskovic, Z. v Manda, Calin | 1-6,1-6 |
| ITF Bulgaria F1 | 2018/05/16 07:00 | Manda, Calin v Georgiev, Yoan | 6-2,6-1 |
| ITF Greece F5 | 2018/03/27 12:00 | Manda, Calin v Haerteis, Johannes | 2-6,2-6 |
| ITF Greece F5 | 2018/03/26 07:00 | Manda, Calin v Gabriele Moghini | 6-3,6-4 |
| ITF Greece F5 | 2018/03/25 10:00 | Manda, Calin v Duje Ajdukovic | 6-1,6-4 |
| ITF Greece F5 | 2018/03/24 07:30 | Manda, Calin v Leiva Biason, Oscar Mattias | 6-2,6-1 |
| ITF Greece F4 | 2018/03/17 07:30 | Manda, Calin v Johnson, Hunter | 6-4,6-4 |
| ITF Greece F3 | 2018/03/11 08:00 | Kohen, Alan v Manda, Calin | 6-4,6-0 |
| ITF Bulgaria F1 | 2018/05/17 07:00 | Gabriel Donev v Seifert, Stefan | 6-4,6-1 |
| ITF Bulgaria F1 | 2018/05/16 08:35 | Gabriel Donev v Glvac, Andrej | 5-7,6-3,6-0 |
| ITF Turkey F11 | 2018/03/23 08:00 | Gabriel Donev v Peter Heller | 1-6,6-1,3-6 |
| ITF Turkey F11 | 2018/03/22 07:30 | Nedovyesov, Aleksandr v Gabriel Donev | 5-7,2-6 |
| ITF Turkey F11 | 2018/03/20 09:30 | Gabriel Donev v Juan Bautista Otegui | 4-6,6-3,7-5 |
| ITF Turkey F11 | 2018/03/19 07:00 | Gabriel Donev v Assuncao Garla, Felipe | 6-4,6-4 |
| ITF Turkey F11 | 2018/03/18 07:00 | Gabriel Donev v Labna, Ramy | 6-2,6-3 |
| ITF Turkey F11 | 2018/03/17 08:30 | Gabriel Donev v Bugaj, Martin | 6-2,7-5 |