Stadium: Court 3 Round: 62 Ground: Hardcourt outdoor
| ITF Morocco F4 | 2017/10/28 12:00 | Kaptan Kaster v Nicolas Uryson | 2-6,4-6 |
| ITF Spain F33 | 2017/10/08 13:00 | Sergi Perez Contri v Kaptan Kaster | 6-2,6-4 |
| ITF Spain F33 | 2017/10/07 11:30 | Kaptan Kaster v Pol Fernandez | 6-7,7-6,6-3 |
| ITF Portugal F21 | 2017/10/02 11:30 | Daniel Kopeinigg v Kaptan Kaster | 6-1,6-2 |
| ITF Portugal F20 Qual | 2017/09/24 12:00 | Ivan Marrero Curbelo v Kaptan Kaster | 6-4,7-5 |
| ITF Portugal F19 | 2017/09/20 11:30 | Kaptan Kaster v Pablo Vivero Gonzalez | 2-6,1-6 |
| ITF Portugal F19 | 2017/09/18 10:00 | Patrick Mayer v Kaptan Kaster | 6-7,6-1,4-6 |
| ITF Portugal F19 | 2017/09/17 10:00 | Kaptan Kaster v Henrique Brancal | 3-6,6-1,6-1 |
| 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 F4 | 2017/11/26 10:30 | Alex Blumenberg v Enrico dos Santos Lima | 7-5,7-6 |
| ITF Brazil F4 | 2017/11/25 13:00 | Alex Blumenberg v Pedro F Maciel | 4-6,6-2,6-2 |
| ITF USA F32 | 2017/09/27 19:00 | Alex Blumenberg v Adrian Oetzbach | 4-6,6-7 |