Stadium: Court 1 Round: 24 Ground: Hardcourt indoor
| Challenger Dallas | 2019/02/04 18:35 | William Blumberg v Vincent Millot | 4-6,5-7 |
| Challenger Stockton | 2018/10/04 16:30 | William Blumberg v Noah Rubin | 1-6,6-4,4-6 |
| Challenger Stockton | 2018/10/02 17:00 | William Blumberg v JC Aragone | 3-6,6-2,6-2 |
| Challenger Stockton | 2018/10/01 17:00 | Pablo Vivero Gonzalez v William Blumberg | 4-6,1-6 |
| Challenger Stockton | 2018/09/30 17:00 | William Blumberg v Steven Diez | 6-2,4-6,6-4 |
| Challenger Stockton | 2018/09/29 17:00 | Ross Watson v William Blumberg | 4-6,2-6 |
| Challenger Cary | 2018/09/12 17:00 | William Blumberg v Jose Hernandez-Fernandez | 4-6,3-6 |
| Challenger Binghamton | 2018/07/26 15:45 | William Blumberg v Lucas Catarina | 4-6,6-2,4-6 |
| Challenger Columbus | 2019/06/12 17:50 | Evan Song v Yasutaka Uchiyama | 7-6,6-7,4-6 |
| Challenger Columbus | 2019/06/10 21:25 | Jared Hiltzik v Evan Song | 3-6,2-6 |
| Challenger Little Rock | 2019/06/05 15:00 | Evan Song v Dudi Sela | 3-6,4-6 |
| Challenger Little Rock | 2019/06/03 19:40 | Evan Song v Zsombor Piros | 7-5,6-4 |
| Challenger Gwangju | 2019/05/14 02:00 | Evan Song v Min-Kyu Song | 3-6,4-6 |
| Challenger Busan | 2019/05/06 03:55 | Evan Song v Dudi Sela | 6-3,3-6,3-6 |
| Challenger Puerto Vallarta | 2019/04/29 17:10 | Alexander Sarkissian v Evan Song | 4-6,7-6,6-1 |
| Challenger Tallahassee | 2019/04/23 16:40 | Johannes Haerteis v Evan Song | 6-4,6-4 |