| ITF Korea F1 Qual | 2014/04/29 00:30 | Ku Keon Kang v Masaki Sasai | 3-6,2-6 |
| ITF Korea F8 | 2016/08/22 01:30 | Masaki Sasai v Jeamoon Lee | 2-6,4-6 |
| ITF Korea F8 | 2016/08/21 02:00 | Masaki Sasai v Weibowen Zou | 6-0,6-3 |
| ITF Vietnam F8 | 2016/08/02 02:00 | Seong Chan Hong v Masaki Sasai | 6-1,6-1 |
| ITF Vietnam F8 | 2016/08/01 03:00 | Xiao Gong v Masaki Sasai | 6-7,4-6 |
| ITF Japan F8 | 2016/06/14 03:00 | Gengo Kikuchi v Masaki Sasai | 7-5,6-4 |
| ITF Japan F7 Qual | 2016/06/05 01:00 | Masaki Sasai v Koichi Sano | 3-6,5-7 |
| ITF Japan F6 | 2016/05/31 01:00 | Masaki Sasai v Evan Song | 1-6,0-6 |
| ITF Guam F1 | 2016/05/27 04:25 | Masato Shiga v Masaki Sasai | 6-2,6-1 |
| ITF Korea F8 | 2016/08/28 04:30 | Rimpei Kawakami v Ku Keon Kang | 7-5,3-6,3-6 |
| ITF Korea F8 | 2016/08/22 01:30 | Oh-Hee Kwon v Ku Keon Kang | 7-5,6-1 |
| ITF Korea F8 | 2016/08/21 04:30 | Tae-Woo Lee v Ku Keon Kang | 0-6,6-7 |
| ITF Turkey F17 | 2016/04/24 08:00 | Ju-Hae Moon v Ku Keon Kang | 6-4,6-3 |
| ITF Turkey F17 | 2016/04/23 07:30 | Ku Keon Kang v Jamie Asanee Praditngam | 2-6,6-1,6-0 |
| ITF Turkey F16 | 2016/04/18 08:00 | Maxime Pauwels v Ku Keon Kang | 6-3,7-5 |
| ITF Turkey F15 | 2016/04/13 07:00 | Ku Keon Kang v Shahbaaz Khan | 6-2,5-7,5-7 |
| ITF Turkey F15 | 2016/04/11 08:00 | Maxime Pauwels v Ku Keon Kang | 2-6,4-6 |