Stadium: Court 9 Round: 62 Ground: Clay
| ITF Czech Republic F3 Qual | 2018/05/27 08:00 | Stepanek, Antonin v Vejvara, Lukas | 6-4,7-5 |
| ITF Czech Republic F2 Qual | 2018/05/21 08:00 | Vejvara, Lukas v Simon Beaupain | 4-6,4-6 |
| ITF Czech Republic F2 Qual | 2018/05/20 08:00 | Vejvara, Lukas v Dusek, Ondrej | 6-1,6-4 |
| Tunisia F16, Singles Qualifying | 2018/04/23 09:00 | Vejvara, Lukas v Tiran Sanghera | 4-6,6-3,3-6 |
| Tunisia F16, Singles Qualifying | 2018/04/22 12:00 | Vejvara, Lukas v Maxim Krapivin | 6-4,6-3 |
| Tunisia F15, Singles Qualifying | 2018/04/15 11:30 | Vejvara, Lukas v Etienne Donnet | 6-4,3-6,3-6 |
| ITF Tunisia F5 | 2018/02/06 08:00 | Schott, Hugo v Vejvara, Lukas | 6-2,7-6 |
| ITF Tunisia F5 | 2018/02/05 08:00 | Vejvara, Lukas v Andrea Guerrieri | 6-3,6-2 |
| ITF Austria F2 | 2018/07/09 12:00 | Haerteis, Johannes v Stenberg, Jonathan | 6-1,7-5 |
| ITF Austria F2 | 2018/07/08 08:00 | Stenberg, Jonathan v Morr, Jonathan | 5-7,4-6 |
| ITF Austria F2 | 2018/07/07 08:00 | Stenberg, Jonathan v Christian Fellin | 6-1,6-0 |
| ITF Austria F1 | 2018/06/30 11:00 | Stenberg, Jonathan v Laurin Aerne | 0-6,6-7 |
| ITF Sweden F3 | 2018/05/23 09:15 | Manuel Guinard v Stenberg, Jonathan | 6-0,6-0 |
| ITF Sweden F3 | 2018/05/22 11:35 | Sekulic, Milos v Stenberg, Jonathan | 6-7,6-7 |
| ITF Sweden F3 Qual | 2018/05/20 09:00 | Thour, Robin v Stenberg, Jonathan | 6-4,5-7,5-7 |
| ITF Sweden F3 Qual | 2018/05/19 10:40 | Kylar, Kevin v Stenberg, Jonathan | 3-6,5-7 |