Stadium: Court Lisboa Round: 46 Ground: Clay
| Challenger Rio De Janeiro | 2017/11/22 16:45 | Fabricio Neis v Christian Oliveira | 6-2,2-6,6-3 |
| Challenger Rio De Janeiro Qual | 2017/11/19 13:00 | Peter Nagy v Fabricio Neis | 6-3,6-7,6-7 |
| Challenger Santiago 2 Qual | 2017/11/11 18:00 | Dimitar Kuzmanov v Fabricio Neis | 7-6,7-5 |
| Challenger Santiago 2 Qual | 2017/11/11 15:15 | Fabricio Neis v Oliver Hudson | 6-2,6-3 |
| Challenger Campinas Qual | 2017/10/01 14:50 | Jose Pereira v Fabricio Neis | 6-3,6-4 |
| Challenger Bogota Qual | 2017/09/03 15:00 | Fabricio Neis v Juan Sebastian Gomez | 3-6,7-5,4-6 |
| Challenger Quito Qual | 2017/08/26 16:00 | Juan Manuel Lopez v Fabricio Neis | 7-6,6-4 |
| Challenger Blois Qual | 2017/06/17 10:00 | Fabricio Neis v Romain Arneodo | 4-6,1-6 |
| 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 |
| Challenger Ostrava Qual | 2018/04/29 13:40 | Jan Satral v Elliot Benchetrit | 2-6,3-6 |
| Challenger Ostrava Qual | 2018/04/28 13:45 | Jan Satral v Mikael Ymer | 7-6,6-2 |
| Challenger San Francisco | 2018/02/06 00:10 | Dominik Koepfer v Jan Satral | 6-2,6-2 |
| Challenger Dallas | 2018/01/30 18:55 | Tommy Paul v Jan Satral | 6-3,6-3 |