Stadium: Court 4 Round: 25 Ground: Hardcourt outdoor
| Challenger Yokohama | 2019/02/26 01:00 | Duckhee Lee v Zihao Xia | 6-0,6-3 |
| Challenger Bangkok 1A | 2019/02/19 07:35 | Alejandro Davidovich Fokina v Duckhee Lee | 6-4,6-2 |
| Challenger Bangkok 1A | 2019/02/18 06:35 | Duckhee Lee v Thanapet Chanta | 6-2,7-6 |
| Challenger Bangkok | 2019/02/12 08:15 | Duckhee Lee v Viktor Troicki | 1-6,2-6 |
| Challenger Bangkok | 2019/02/11 03:00 | Wishaya Trongcharoenchaikul v Duckhee Lee | 3-6,3-6 |
| Challenger Chennai | 2019/02/07 05:00 | Duckhee Lee v Nicola Kuhn | 4-6,4-6 |
| Challenger Chennai | 2019/02/05 05:50 | Duckhee Lee v Sumit Nagal | 6-3,6-4 |
| Australian Open | 2019/01/08 02:55 | Gregoire Barrere v Duckhee Lee | 6-3,6-2 |
| Challenger Bangkok 1A | 2019/02/20 03:00 | Dudi Sela v Enzo Couacaud | 6-2,6-3 |
| Challenger Bangkok 1A | 2019/02/18 08:35 | Jose Hernandez-Fernandez v Enzo Couacaud | 5-7,2-6 |
| Challenger Bangkok | 2019/02/11 06:00 | Oriol Roca Batalla v Enzo Couacaud | 7-6,7-5 |
| Challenger Newport Beach | 2019/01/26 19:35 | Taylor Fritz v Enzo Couacaud | 6-1,6-4 |
| Challenger Newport Beach | 2019/01/25 19:00 | Enzo Couacaud v Darian King | 6-3,3-6,7-6 |
| Challenger Newport Beach | 2019/01/24 22:15 | Filip Peliwo v Enzo Couacaud | 6-3,4-6,3-6 |
| Challenger Newport Beach | 2019/01/22 23:00 | Enzo Couacaud v Ernesto Escobedo | 6-4,6-4 |
| Challenger Newport Beach | 2019/01/21 22:05 | Mario Vilella Martinez v Enzo Couacaud | 4-6,3-6 |