| Challenger Busan | 2019/05/06 03:55 | Evan Song v Dudi Sela | 6-3,3-6,3-6 |
| 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 |
| Challenger Sarasota | 2019/04/16 20:55 | Evan Song v Aleksandar Vukic | 2-6,6-3,0-6 |
| Challenger Sarasota | 2019/04/15 22:30 | Evan Song v JC Aragone | 6-3,6-0 |
| Challenger Monterrey | 2019/04/03 18:50 | Evan Song v Bradley Klahn | 4-6,3-6 |
| Challenger Jerusalem | 2019/05/22 12:30 | Dudi Sela v Danilo Petrovic | 3-6,6-7 |
| Challenger Gwangju | 2019/05/19 03:25 | Jason Jung v Dudi Sela | 6-4,6-2 |
| Challenger Gwangju | 2019/05/18 02:00 | Dudi Sela v Soonwoo Kwon | 6-4,7-5 |
| Challenger Gwangju | 2019/05/17 05:15 | Dudi Sela v Evgeny Donskoy | 7-6,6-2 |
| Challenger Gwangju | 2019/05/16 03:50 | Konstantin Kravchuk v Dudi Sela | 1-6,1-6 |
| Challenger Gwangju | 2019/05/15 05:10 | Roy Smith v Dudi Sela | 0-6,2-6 |
| Challenger Busan | 2019/05/08 07:05 | Dudi Sela v Marcos Baghdatis | 6-4,2-6,2-6 |
| Challenger Busan | 2019/05/06 03:55 | Evan Song v Dudi Sela | 6-3,3-6,3-6 |