| Challenger Stockton | 10/01 17:00 | 54 | Vivero Gonzalez, Pablo v Blumberg, William | 4-6,1-6 | |
| Challenger Stockton | 09/30 17:00 | 46 | Blumberg, William v Steven Diez | 6-2,4-6,6-4 | |
| Challenger Stockton | 09/29 17:00 | 45 | Watson, Ross v Blumberg, William | 4-6,2-6 | |
| Challenger Cary | 09/12 17:00 | 26 | Blumberg, William v Hernandez-Fernandez, Jose | 4-6,3-6 | |
| Challenger Cary | 09/10 23:25 | 25 | Blumberg, William v Harris, Andrew | Retired | |
| Challenger Chicago | 09/02 16:10 | 45 | Blumberg, William v Hiltzik, Aron | Retired | |
| Binghamton, USA | 07/26 15:45 | 25 | Blumberg, William v Lucas Catarina | 4-6,6-2,4-6 | |
| ATP Newport Qual | 07/15 16:25 | 64 | Bachinger, Matthias v Blumberg, William | 5-7,7-5,6-2 | |
| Challenger Cary | 09/14 19:00 | 26 | Mitchell Krueger v Blumberg, William | 6-2,6-2 | |
| Challenger Cary | 09/12 20:00 | 25 | Blumberg, William v Klein, Brydan | 6-2,7-6 | |
| US Open, New York, USA, Qualifying | 08/23 18:15 | 44 | Cem Ilkel v Blumberg, William | 6-2,6-4 | |
| Binghamton, USA | 07/29 15:00 | 28 | Jordan Thompson v Blumberg, William | 4-6,6-3,6-3 | |
| Binghamton, USA | 07/28 17:20 | 27 | Zhang, Ze v Blumberg, William | Walkover | |
| Binghamton, USA | 07/26 17:20 | 26 | Blumberg, William v Denis Kudla | 6-3,6-2 | |
| Binghamton, USA | 07/25 19:10 | 25 | Blumberg, William v Luke Saville | 7-5,6-3 | |
| ATP Newport Qual | 07/17 15:00 | 46 | Groth, Sam v Blumberg, William | 6-2,6-4 | |
| ATP Newport Qual | 07/16 15:00 | 45 | Blumberg, William v Mcgee, James | 7-6,6-4 | |
| ITF USA F21 | 06/30 16:00 | 27 | Blumberg, William v Reinberg, Emil | 4-6,3-6 | |
| ITF USA F21 | 06/29 18:30 | 26 | Blumberg, William v Kilani, Majed | 6-4,6-0 | |
| ITF USA F21 | 06/27 18:25 | 25 | Spencer, Wil v Blumberg, William | 5-7,2-6 | |
| ITF USA F9 Qual | 02/23 14:30 | - | Juan Pablo Ficovich v Blumberg, William | 2-6,6-1,6-0 | |
| ITF USA F9 Qual | 02/21 18:30 | - | Blumberg, William v Rigele Te | 6-2,6-3 | |
| ITF USA F8 Qual | 02/15 16:30 | - | Santiago, Mico v Blumberg, William | 6-2,6-4 | |
| ITF USA F8 Qual | 02/14 16:00 | - | Li, Yuanfeng v Blumberg, William | 4-6,3-6 | |
| ITF USA F18 | 06/22 16:00 | - | Blumberg, William v Battistone, Brian | 6-4,3-6,3-6 |