Stadium: Center Round: 25 Ground: Hardcourt outdoor
| Challenger Binghamton | 2018/07/26 15:45 | William Blumberg v Lucas Catarina | 4-6,6-2,4-6 |
| ATP Newport Qual | 2018/07/15 16:25 | Matthias Bachinger v William Blumberg | 5-7,7-5,6-2 |
| Challenger Cary | 2017/09/14 19:00 | Mitchell Krueger v William Blumberg | 6-2,6-2 |
| Challenger Cary | 2017/09/12 20:00 | William Blumberg v Brydan Klein | 6-2,7-6 |
| US Open Qual | 2017/08/23 18:15 | Cem Ilkel v William Blumberg | 6-2,6-4 |
| Challenger Binghamton | 2017/07/29 15:00 | Jordan Thompson v William Blumberg | 4-6,6-3,6-3 |
| Challenger Binghamton | 2017/07/26 17:20 | William Blumberg v Denis Kudla | 6-3,6-2 |
| Challenger Binghamton | 2017/07/25 19:10 | William Blumberg v Luke Saville | 7-5,6-3 |
| Challenger Chicago | 2018/09/02 21:50 | Andrew Harris v Hugo Nys | 4-6,3-6 |
| ITF USA F23 | 2018/08/18 16:05 | Sekou Bangoura v Andrew Harris | 2-6,6-4,6-4 |
| ITF USA F23 | 2018/08/17 16:20 | Vasil Kirkov v Andrew Harris | 3-6,6-1,4-6 |
| ITF USA F23 | 2018/08/16 18:10 | Axel Geller v Andrew Harris | 4-6,4-6 |
| ITF USA F23 | 2018/08/15 14:00 | Trent Bryde v Andrew Harris | 4-6,7-6,4-6 |
| Challenger Lexington | 2018/08/03 00:45 | Andrew Harris v Jay Clarke | 3-6,3-6 |
| Challenger Lexington | 2018/07/31 16:50 | Mikael Torpegaard v Andrew Harris | 6-7,6-7 |
| Challenger Binghamton | 2018/07/26 19:25 | Lloyd Harris v Andrew Harris | 6-3,6-3 |