Stadium: Court 2 Round: 26 Ground: Hardcourt outdoor
| ITF M15 Almaty | 2019/07/09 07:30 | Ji Sung Nam v Sultan Narbekov | 6-1,6-1 |
| Challenger - Columbus | 2019/06/16 17:55 | Ji Sung Nam v Mikael Torpegaard | 1-6,5-7 |
| Challenger - Columbus | 2019/06/14 17:00 | Ji Sung Nam v Zhizhen Zhang | 6-3,6-2 |
| Challenger - Columbus | 2019/06/13 21:35 | Alejandro Gonzalez v Ji Sung Nam | 4-6,2-6 |
| Challenger - Columbus | 2019/06/12 16:10 | Ji Sung Nam v Jeffrey John Wolf | 6-4,3-6,6-4 |
| Challenger - Columbus | 2019/06/10 22:45 | Cannon Kingsley v Ji Sung Nam | 5-7,4-6 |
| Challenger - Little Rock | 2019/06/04 17:50 | Joao Menezes v Ji Sung Nam | 5-7,6-1,6-2 |
| ITF M25 - Nonthaburi | 2019/05/26 03:00 | Ji Sung Nam v Shuichi Sekiguchi | 1-6,4-6 |
| ITF M15 Almaty | 2019/07/10 04:00 | Sagadat Ayap v Sergey Bolotov | 6-1,6-2 |
| ITF M25 - Hongkong | 2019/06/13 05:45 | Nam Hoang Ly v Sagadat Ayap | 6-3,6-0 |
| ITF M25 - Hongkong | 2019/06/12 04:00 | Zheng Qi Jonathan Zhang v Sagadat Ayap | 1-6,3-6 |
| ITF M15 Irpin | 2019/05/29 07:00 | Sagadat Ayap v Oleg Prihodko | 3-6,3-6 |
| ITF M15 Irpin | 2019/05/28 08:25 | Richard Zusman v Sagadat Ayap | 1-6,4-6 |
| ITF M15 Irpin | 2019/05/20 09:00 | Sagadat Ayap v Egor Matvievici | 6-4,6-3 |
| ITF M15 Irpin | 2019/05/20 07:00 | Sagadat Ayap v Dmytro Kamynin | 4-6,3-6 |
| Challenger - Shymkent | 2019/05/06 04:00 | Vladyslav Manafov v Sagadat Ayap | 6-3,6-3 |