| ITF China F9 | 2014/07/24 02:00 | Niki, Takuto v Nam, Ji Sung | 5-7,4-6 |
| ITF Korea F3 | 2018/06/22 08:10 | Niki, Takuto v Jae Hwan Kim | 6-3,6-4 |
| ITF Korea F3 | 2018/06/20 03:15 | Yu, Cheng-Yu v Niki, Takuto | 4-6,3-6 |
| ITF Korea F3 | 2018/06/19 07:10 | Moritani, Soichiro v Niki, Takuto | 0-6,0-6 |
| ITF Korea F2 | 2018/06/14 03:20 | Son, Ji Hoon v Niki, Takuto | 7-6,7-5 |
| ITF Korea F2 | 2018/06/13 04:55 | Niki, Takuto v Song, Min-Kyu | 3-6,7-5,6-3 |
| ITF Korea F1 | 2018/06/09 02:35 | Niki, Takuto v Jeamoon Lee | 3-6,6-4,4-6 |
| ITF Korea F1 | 2018/06/08 03:30 | Niki, Takuto v Chung, Hong | 6-1,6-0 |
| ITF Korea F1 | 2018/06/07 04:25 | Niki, Takuto v Noh, Sang-Woo | 6-3,6-2 |
| ITF Korea F3 | 2018/06/22 05:10 | Nam, Ji Sung v Kim, Cheong-Eui | 6-7,6-4,6-3 |
| ITF Korea F3 | 2018/06/21 01:00 | Nam, Ji Sung v Jeamoon Lee | 7-5,6-3 |
| ITF Korea F3 | 2018/06/19 08:15 | Nam, Ji Sung v Mcdaniels, Mitchell Thomas | 6-0,6-1 |
| ITF Korea F2 | 2018/06/17 04:00 | Nam, Ji Sung v Yunseong Chung | 4-6,3-6 |
| ITF Korea F2 | 2018/06/16 01:00 | Kim, Cheong-Eui v Nam, Ji Sung | 4-6,2-6 |
| ITF Korea F2 | 2018/06/15 01:00 | Hong, Seong Chan v Nam, Ji Sung | 5-7,3-6 |
| ITF Korea F2 | 2018/06/14 01:00 | Jeamoon Lee v Nam, Ji Sung | 2-6,0-6 |
| ITF Korea F2 | 2018/06/13 06:50 | Kim, Young Seok v Nam, Ji Sung | 6-7,0-6 |