Stadium: Court 4 Round: 26 Ground: Clay
| Challenger Marburg Qual | 2018/06/30 16:00 | Rafael Matos v Federico Gaio | 3-6,4-6 |
| ITF Czech Republic F4 | 2018/06/27 08:00 | Marko Miladinovic v Rafael Matos | 6-3,6-4 |
| ITF Czech Republic F4 | 2018/06/25 08:00 | Daniel Rabas v Rafael Matos | 4-6,2-6 |
| ITF Hungary F5 | 2018/06/19 08:00 | Rafael Matos v Jelle Sels | 2-6,3-6 |
| ITF Brazil F4 | 2018/05/18 15:00 | Rafael Matos v Joao Lucas Reis da Silva | 3-6,4-6 |
| ITF Brazil F4 | 2018/05/17 15:00 | Rafael Matos v Gabriel Ciro Da Silva | 6-2,6-1 |
| ITF Brazil F4 | 2018/05/15 14:10 | Rafael Matos v Enrique Bogo | 6-0,6-1 |
| ITF Brazil F3 | 2018/05/11 15:30 | Tomas Martin Etcheverry v Rafael Matos | 7-6,7-5 |
| ITF Brazil F2 | 2018/04/30 15:00 | Tomas Martin Etcheverry v Alex Blumenberg | 6-4,6-2 |
| ITF Brazil F2 | 2018/04/29 15:00 | Alex Blumenberg v Igor Sao Thiago | 6-4,5-7,6-4 |
| ITF Brazil F2 | 2018/04/28 17:30 | Alex Blumenberg v Enrico dos Santos Lima | 6-3,6-4 |
| ITF Brazil F1 | 2018/04/22 15:30 | Alex Blumenberg v Enrique Bogo | 3-6,4-6 |
| ITF Brazil F1 | 2018/04/21 16:00 | Laelson Rodrigues v Alex Blumenberg | 2-6,2-6 |
| ITF USA F8 Qual | 2018/03/17 17:00 | Alex Blumenberg v Evan Zhu | 5-7,3-6 |
| ITF Canada F2 Qual | 2018/03/03 15:00 | Alex Blumenberg v Francesco Ferrari | 6-7,6-7 |
| ITF Canada F1 Qual | 2018/02/25 15:00 | Danny Thomas v Alex Blumenberg | 7-6,7-6 |