Stadium: Court 1 Round: 27 Ground: Clay
| ITF Ukraine F2 | 2018/05/18 09:30 | Merckx, Jonas v Kolisnyk, Olexiy | 6-3,6-3 |
| ITF Ukraine F3 | 2018/05/23 07:00 | Kolisnyk, Olexiy v Giorgio Ricca | 6-2,7-6 |
| ITF Ukraine F3 | 2018/05/21 10:00 | Kolisnyk, Olexiy v Parshutin, Denis | 6-1,6-1 |
| ITF Ukraine F2 | 2018/05/18 09:30 | Merckx, Jonas v Kolisnyk, Olexiy | 6-3,6-3 |
| ITF Ukraine F2 | 2018/05/17 10:00 | Boychuk, Roman v Kolisnyk, Olexiy | 6-7,3-6 |
| ITF Ukraine F2 | 2018/05/15 10:30 | Kolisnyk, Olexiy v Brechemier, Thomas | 6-2,6-2 |
| ITF Ukraine F1 | 2018/05/09 07:00 | Kolisnyk, Olexiy v Vitaliy Sachko | 2-6,4-6 |
| ITF Ukraine F1 | 2018/05/07 07:00 | Kolisnyk, Olexiy v Didenko, Bogdan | 6-2,6-2 |
| Turkey F17, Singles Qualifying | 2018/05/01 11:30 | Kolisnyk, Olexiy v Gorazd Srbljak | 4-6,3-6 |
| ITF Ukraine F3 | 2018/05/23 09:25 | Myagkov, Dmitry v Merckx, Jonas | 1-6,3-6 |
| ITF Ukraine F3 | 2018/05/22 15:25 | Malakhov, Volodymyr v Merckx, Jonas | 1-6,1-6 |
| ITF Ukraine F2 | 2018/05/19 07:00 | Dolgosheyev, Oleg v Merckx, Jonas | 4-6,2-6 |
| ITF Ukraine F2 | 2018/05/18 09:30 | Merckx, Jonas v Kolisnyk, Olexiy | 6-3,6-3 |
| ITF Ukraine F2 | 2018/05/17 07:05 | Fortuna, Claudio v Merckx, Jonas | 3-6,2-6 |
| 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 |