Estadio: Court 2 Round: 27 Ground: Hardcourt outdoor
| ITF M25 Nonthaburi | 2019/05/23 06:00 | Ji Sung Nam v Ryota Tanuma | 7-6,6-3 |
| Challenger Gwangju | 2019/05/14 06:00 | Ji Sung Nam v Yuichi Sugita | 2-6,2-6 |
| Challenger Gwangju | 2019/05/13 02:00 | Ji Sung Nam v Rio Noguchi | 6-2,6-1 |
| Challenger de Busan | 2019/05/06 07:40 | Cem Ilkel v Ji Sung Nam | 6-4,7-6 |
| Challenger de Seúl | 2019/05/01 02:00 | Ji Sung Nam v Ramkumar Ramanathan | 3-6,6-7 |
| Challenger de Seúl | 2019/04/30 03:35 | Ji Sung Nam v Duckhee Lee | 7-5,6-1 |
| Challenger de Seúl | 2019/04/29 02:00 | Ji Sung Nam v Ji Hoon Son | 6-3,6-2 |
| ITF M25 Matsuyama | 2019/04/12 01:00 | Ji Sung Nam v Gage Brymer | 3-6,3-6 |
| ITF M25 Nonthaburi | 2019/05/23 05:45 | Chayanon Kaewsuto v Khumoyun Sultanov | 3-6,6-7 |
| ITF M25 Nonthaburi | 2019/05/21 06:25 | Jose Fco. Vidal Azorin v Khumoyun Sultanov | 4-6,7-5,2-6 |
| Challenger de Samarcanda | 2019/05/13 05:00 | Khumoyun Sultanov v Sergey Fomin | 6-7,6-3,2-6 |
| Challenger de Shymkent | 2019/05/06 11:10 | Khumoyun Sultanov v Zsombor Piros | 7-5,4-6,2-6 |
| ITF M25 Namangan | 2019/05/03 06:50 | Konstantin Kravchuk v Khumoyun Sultanov | 3-6,6-4,7-5 |
| ITF M25 Namangan | 2019/05/02 05:30 | Matvey Minin v Khumoyun Sultanov | 1-6,4-6 |
| ITF M25 Namangan | 2019/04/30 12:00 | Sharobiddin Abzalov v Khumoyun Sultanov | 6-7,4-6 |
| ITF M25 Andiyán | 2019/04/26 11:35 | Vladyslav Manafov v Khumoyun Sultanov | 6-4,6-4 |