| ITF Brazil F2 | 2015/06/13 12:30 | Victor Bertoldo v Alex Blumenberg | 3-6,0-6 |
| ITF Egypt F33 | 2015/05/06 08:40 | Alex Blumenberg v Bartosz Wojnar | 6-3,6-3 |
| ITF Egypt F33 | 2015/04/28 08:00 | Alex Blumenberg v Sergiy Sergiienko | 6-7,6-2,4-6 |
| ITF Egypt F33 | 2015/04/22 08:00 | Mohamed Safwat v Alex Blumenberg | 6-3,6-1 |
| ITF Egypt F33 | 2015/04/15 09:40 | Alex Blumenberg v Christian Hirschmueller | 6-7,4-6 |
| Challenger Campinas Qual | 2014/09/15 13:30 | Joao Pedro Sorgi v Alex Blumenberg | 6-2,6-4 |
| ITF USA F20 | 2014/07/15 19:05 | Alex Blumenberg v Thai-Son Kwiatkowski | 1-6,5-7 |
| ITF Turkey F19 | 2014/06/05 12:10 | Nikola Milojevic v Alex Blumenberg | 6-3,6-2 |