Stadium: Court 5 Round: 54 Ground: Clay
| ITF Czech Republic F3 | 2018/05/29 08:30 | Dominik Recek v Jan Satral | 1-6,4-6 |
| Challenger Mestre Qual | 2018/05/19 10:35 | Jan Satral v Edoardo Eremin | 6-7,4-6 |
| Challenger Lisbon Qual | 2018/05/14 12:00 | Joris De Loore v Jan Satral | 6-1,6-7,7-6 |
| Challenger Lisbon Qual | 2018/05/13 13:10 | Fabricio Neis v Jan Satral | 7-6,3-6,1-6 |
| Challenger Lisbon Qual | 2018/05/12 13:35 | Omar Giacalone v Jan Satral | 6-3,4-6,4-6 |
| Challenger Braga | 2018/05/08 13:40 | Jan Satral v Joao Domingues | 3-6,2-6 |
| Challenger Braga Qual | 2018/05/06 10:00 | Simon Beaupain v Jan Satral | 6-2,4-6,0-6 |
| Challenger Braga Qual | 2018/05/05 11:10 | Sander Arends v Jan Satral | 2-6,2-6 |
| ITF Argentina F2 | 2018/05/25 13:00 | Juan Carlos Saez v Oscar Jose Gutierrez | 6-4,4-6,6-4 |
| ITF Argentina F2 | 2018/05/24 14:00 | Eduardo Agustin Torre v Oscar Jose Gutierrez | 4-6,1-6 |
| ITF Argentina F2 | 2018/05/23 13:00 | Felipe Derdoy v Oscar Jose Gutierrez | 0-6,0-6 |
| ITF Argentina F2 | 2018/05/22 13:00 | Mateo Nicolas Martinez v Oscar Jose Gutierrez | 6-4,4-6,2-6 |
| ITF Brazil F4 | 2018/05/17 19:30 | Oscar Jose Gutierrez v Jose Pereira | 2-6,2-6 |
| ITF Brazil F4 | 2018/05/15 13:00 | Oscar Jose Gutierrez v Igor Gimenez | 6-0,7-6 |
| ITF Brazil F3 | 2018/05/13 13:30 | Oscar Jose Gutierrez v Marcelo Zormann | 6-2,6-2 |
| ITF Brazil F3 | 2018/05/12 17:20 | Nicolas Santos v Oscar Jose Gutierrez | 6-4,3-6,4-6 |