Stadium: Court 6 Round: 25 Ground: Hardcourt indoor
| Challenger Little Rock | 2019/06/08 21:00 | Duckhee Lee v Darian King | 6-0,6-0 |
| Challenger Little Rock | 2019/06/08 16:35 | Duckhee Lee v Mitchell Krueger | 4-6,6-3,6-1 |
| Challenger Little Rock | 2019/06/07 21:00 | Zhizhen Zhang v Duckhee Lee | 4-6,7-6,6-7 |
| Challenger Little Rock | 2019/06/05 15:00 | Jordi Arconada v Duckhee Lee | 1-6,4-6 |
| Challenger Gwangju | 2019/05/15 03:40 | Duckhee Lee v Yunseong Chung | 4-6,2-6 |
| Challenger Busan | 2019/05/09 04:40 | Ricardas Berankis v Duckhee Lee | 6-3,3-6,6-3 |
| Challenger Busan | 2019/05/08 04:50 | Duckhee Lee v Yuichi Sugita | 5-7,6-3,7-6 |
| Challenger Busan | 2019/05/07 06:20 | Makoto Ochi v Duckhee Lee | 6-7,4-6 |
| Challenger Columbus | 2019/06/11 20:50 | Orlando Luz v John McNally | 5-7,7-6,5-7 |
| Challenger Columbus | 2019/01/07 23:10 | Roberto Ortega-Olmedo v John McNally | 6-2,6-2 |
| ITF USA F33 | 2018/11/21 17:00 | John McNally v Roberto Ortega-Olmedo | 1-6,2-6 |
| ITF USA F33 | 2018/11/20 15:00 | John McNally v Alex Kobelt | 7-6,7-5 |
| Challenger Columbus | 2018/09/20 14:00 | John McNally v Dominik Koepfer | 4-6,6-4,4-6 |
| Challenger Columbus | 2018/09/18 14:00 | Ryan Shane v John McNally | 6-7,5-7 |
| Challenger Lexington Qual | 2018/07/28 14:00 | Borna Gojo v John McNally | 6-1,6-4 |
| ITF USA F20 | 2018/07/26 21:25 | Sebastian Korda v John McNally | 6-3,3-6,7-5 |