| ITF USA F32 | 09/27 19:00 | 25 | Alex Blumenberg v Adrian Oetzbach | 4-6,6-7 | |
| ITF Canada F8 | 09/19 14:00 | 25 | Alex Blumenberg v Alejandro Tabilo | 3-6,6-4,5-7 | |
| ITF Canada F7 Qual | 09/09 21:00 | 44 | Alex Blumenberg v Daniel Grunberger | 5-7,1-6 | |
| ITF USA F22 | 06/28 15:20 | 25 | Alex Blumenberg v David Volfson | 4-6,4-6 | |
| ITF USA F20 | 06/21 17:00 | 25 | Alexios Halebian v Alex Blumenberg | 4-6,6-3,6-0 | |
| ITF USA F18 | 06/14 17:45 | 25 | Alex Blumenberg v Kaichi Uchida | 1-6,4-6 | |
| ITF USA F16 | 05/03 14:00 | 25 | Thales Turini v Alex Blumenberg | 6-3,4-6,6-1 | |
| ITF USA F15 | 04/25 14:00 | 60 | Alex Blumenberg v Sam Riffice | 3-6,0-6 | |
| ITF USA F14 | 04/19 17:30 | 25 | Dominik Koepfer v Alex Blumenberg | 6-2,6-0 | |
| ITF Canada F1 Qual | 02/27 19:00 | 44 | Alex Blumenberg v Jonathan Chang | Retired | |
| ITF Canada F1 Qual | 02/26 19:00 | 44 | Alex Blumenberg v Sebastien Collard | 6-4,6-2 | |
| ITF USA F8 | 02/23 16:50 | 25 | Michael Linzer v Alex Blumenberg | 6-1,6-2 | |
| ITF USA F8 | 02/20 18:00 | 60 | Alex Blumenberg v Ty Trombetta | 6-4,6-3 | |
| ITF USA F8 | 02/18 18:00 | 60 | Alex Blumenberg v Alexander Brown | 7-5,6-4 | |
| ITF USA F8 | 02/18 00:00 | 60 | Alex Blumenberg v Juan Rocha | 7-6,4-6,6-3 | |
| ITF USA F7 | 02/13 16:00 | 60 | Junior Alexander Ore v Alex Blumenberg | 6-4,6-3 | |
| ITF USA F7 | 02/12 16:30 | 60 | Juan Rocha v Alex Blumenberg | 5-7,3-6 | |
| ITF USA F7 | 02/11 17:30 | 60 | Alexander Merino v Alex Blumenberg | 6-2,5-7,3-6 | |
| ITF USA F7 | 02/10 14:00 | 60 | Emilio Nava v Alex Blumenberg | 2-6,2-6 | |
| ITF Chile F7 | 12/15 16:00 | 27 | Alex Blumenberg v Cristobal S-Corvalan | 1-6,4-6 | |
| ITF Chile F7 | 12/14 14:30 | 26 | R. Urzua-Rivera v Alex Blumenberg | 6-7,2-6 | |
| ITF Chile F7 | 12/13 20:05 | 25 | Matias Franco Descotte v Alex Blumenberg | 1-6,6-7 | |
| ITF Chile F6 | 12/07 18:05 | 26 | Alex Blumenberg v Marcelo T B Vera | 3-6,6-3,2-6 | |
| ITF Chile F5 | 11/29 13:10 | 25 | Alex Blumenberg v Juan Ignacio Ameal | 4-6,7-5,1-6 | |
| Challenger Campinas Qual | 10/01 19:40 | 46 | Alex Blumenberg v Fernando Romboli | 2-6,1-6 | |
| Challenger Campinas Qual | 10/01 14:20 | 45 | Alex Blumenberg v Osni Junior | 6-1,6-2 | |
| ITF USA F29 | 09/22 18:55 | 26 | Sebastian Fanselow v Alex Blumenberg | Retired | |
| ITF USA F29 | 09/21 19:50 | 25 | Alex Blumenberg v Alexei Popyrin | 4-6,6-4,6-3 | |
| ITF USA F28 | 09/17 17:00 | 28 | Alex Blumenberg v Evan Zhu | 6-7,1-6 | |
| ITF USA F28 | 09/16 18:30 | 27 | Alex Blumenberg v Lucas Gomez | 7-5,6-4 |