stadio: Court 4 Round: 25 Ground: Hardcourt outdoor
| 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 M25 Nonthaburi | 2019/05/25 03:00 | Ji Sung Nam v Shintaro Imai | 6-4,7-5 |
| ITF M25 Shymkent | 2019/04/16 04:00 | Timur Maulenov v Sultan Narbekov | 6-3,4-6,10-7 |
| ITF M25 Shymkent | 2019/04/15 05:35 | Sultan Narbekov v Shonigmatjon Shofayziyev | 7-6,5-7,10-5 |
| ITF M25 Shymkent | 2019/04/08 05:30 | Sultan Narbekov v Aliaksandr Liaonenka | 1-6,6-7 |
| ITF M25 Aktobe | 2019/02/18 06:00 | Sultan Narbekov v Timur Kiyamov | 6-7,2-6 |
| ITF M25 Aktobe | 2019/02/13 10:25 | Sultan Narbekov v Lucas Catarina | 2-6,4-6 |
| ITF M15 Sharm El Sheikh | 2019/01/21 08:00 | Adrian Andrzejczuk v Sultan Narbekov | 6-3,6-2 |
| ITF Turchia F36 | 2018/11/11 09:00 | Sultan Narbekov v Edward Hubner | 1-6,4-6 |
| ITF Turchia F36 | 2018/11/10 08:30 | Stefan Suvajac v Sultan Narbekov | 0-6,7-5,0-6 |