Stadium: Court 2 Round: 44 Ground: Clay
| 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 |
| ITF Brazil F4 | 2017/11/28 11:30 | Oscar Jose Gutierrez v Alex Blumenberg | 7-5,6-2 |
| ITF Brazil F4 | 2017/11/27 11:00 | Alex Blumenberg v Andre Luiz Cezar | 6-2,6-2 |
| ITF Brazil F1 | 2018/04/22 15:30 | Gustavo De O Cruz v Igor Sao Thiago | 6-4,5-7,6-1 |
| ITF Portugal F8 | 2018/04/18 12:10 | Igor Sao Thiago v Miliaan Niesten | 1-6,3-6 |
| ITF Portugal F8 Qual | 2018/04/16 09:30 | Goncalo Falcao v Igor Sao Thiago | 6-4,6-1 |
| ITF Portugal F8 Qual | 2018/04/15 09:00 | Andre Rodeia v Igor Sao Thiago | 1-6,5-7 |
| ITF Portugal F3 | 2018/03/05 14:00 | Igor Sao Thiago v Jose-Ricardo Nunes | 1-6,4-6 |
| ITF Portugal F2 Qual | 2018/02/24 12:30 | Igor Sao Thiago v Pedro Vives Marcos | 6-7,1-6 |
| ITF Portugal F1 | 2018/02/17 12:30 | Rafael Tosetto v Igor Sao Thiago | 6-4,4-6,6-4 |
| ITF Peru F1 | 2017/12/10 22:00 | Igor Sao Thiago v Duilio Vallebuona | 4-6,2-6 |