Stadium: Court 3 Round: 27 Ground: Clay
| ITF Ukraine F2 | 2018/05/16 12:00 | Giorgio Ricca v Fortuna, Claudio | 6-3,1-6,1-6 |
| ITF Ukraine F2 | 2018/05/15 09:25 | Fortuna, Claudio v Ayap, Sagadat | 6-0,6-3 |
| ITF Ukraine F1 | 2018/05/10 09:10 | Petrone, Alessandro v Fortuna, Claudio | 6-7,6-3,6-1 |
| ITF Ukraine F1 | 2018/05/09 07:00 | Nikita Mashtakov v Fortuna, Claudio | 4-6,6-2,5-7 |
| ITF Ukraine F1 | 2018/05/08 07:00 | Oleg Prihodko v Fortuna, Claudio | 0-6,4-6 |
| Tunisia F14, Singles Qualifying | 2018/04/11 09:00 | Perez Sanz, David v Fortuna, Claudio | 3-6,6-2,6-3 |
| ITF Tunisia F13 | 2018/04/05 12:25 | Konecny, Michal v Fortuna, Claudio | 6-4,6-1 |
| ITF Tunisia F13 | 2018/04/04 11:20 | Pulgar-Garcia, Jaime v Fortuna, Claudio | 5-7,2-6 |
| ITF Ukraine F2 | 2018/05/16 12:00 | Luca Giacomini v Merckx, Jonas | 4-6,6-3,5-7 |
| ITF Ukraine F2 | 2018/05/15 10:05 | Jordan Correia Passos Do Carmo v Merckx, Jonas | 6-7,4-6 |
| ITF France F8 | 2018/04/27 11:00 | Jacq, Gregoire v Merckx, Jonas | 6-2,6-4 |
| ITF France F8 | 2018/04/26 09:00 | Vibert, Francois Arthur v Merckx, Jonas | 0-6,6-4,6-7 |
| ITF France F8 | 2018/04/24 08:00 | Merckx, Jonas v Lucas Miedler | 6-0,3-6,7-5 |
| ITF Turkey F13 | 2018/04/04 08:40 | Orlando Luz v Merckx, Jonas | 6-4,6-4 |
| Qatar F3, Singles | 2018/03/14 12:00 | El Midhawy, Adam v Merckx, Jonas | 7-6,6-2 |
| Qatar F3, Singles | 2018/03/13 18:05 | Merckx, Jonas v Marsel Ilhan | 6-4,3-6,6-4 |