Round: 62 Ground: Clay
| ITF Hungary F2 Qual | 2018/05/14 11:00 | Morr, Jonathan v Martin Zeljenka | 2-6,7-6,6-4 |
| ITF Hungary F2 Qual | 2018/05/15 13:20 | Frunza, Nicolae v Morr, Jonathan | 6-2,6-2 |
| ITF Hungary F2 Qual | 2018/05/14 11:00 | Morr, Jonathan v Martin Zeljenka | 2-6,7-6,6-4 |
| ITF Hungary F2 Qual | 2018/05/13 08:00 | Morr, Jonathan v Kulibaba, Artur | 6-2,6-1 |
| Egypt F15, Singles Qualifying | 2018/04/23 08:00 | Morr, Jonathan v Guerrero, Jeff | 6-2,0-6,1-6 |
| Egypt F14, Singles Qualifying | 2018/04/16 08:30 | Morr, Jonathan v Echeverry, Daniel | 3-6,2-6 |
| ITF Egypt F13 | 2018/04/09 08:30 | Vladyslav Orlov v Morr, Jonathan | 6-2,6-4 |
| ITF Egypt F13 | 2018/04/08 10:30 | Yehorov, Vasil v Morr, Jonathan | 2-6,3-6 |
| ITF Egypt F13 | 2018/04/07 12:00 | Portmann, Kevin v Morr, Jonathan | 3-6,1-6 |
| ITF Hungary F3 Qual | 2018/05/19 10:00 | Martin Zeljenka v Pirolt, Pietro | 6-4,6-0 |
| ITF Hungary F2 Qual | 2018/05/14 11:00 | Morr, Jonathan v Martin Zeljenka | 2-6,7-6,6-4 |
| ITF Hungary F2 Qual | 2018/05/13 08:00 | Martin Zeljenka v Gostincar, Domen | 6-4,6-3 |
| ITF Hungary F2 Qual | 2018/05/12 10:30 | Necz, Andras v Martin Zeljenka | 3-6,6-4,5-7 |
| ITF Hungary F1 Qual | 2018/05/06 08:00 | Andre Biro v Martin Zeljenka | 6-4,7-6 |
| ITF Hungary F1 Qual | 2018/05/05 10:00 | Meyer, Mark Stewart v Martin Zeljenka | 3-6,1-6 |
| ITF Poland F1 | 2018/04/28 07:00 | Martin Zeljenka v Duje Ajdukovic | 1-6,3-6 |
| ITF Croatia F3 | 2018/03/18 13:00 | Martin Zeljenka v Subanovic, Nemanja | 5-7,1-6 |