Round: 62 Ground: Hardcourt outdoor
| ITF Turkey F7 | 2018/02/18 06:30 | Marko Miladinovic v Cheong Hwi Kim | 6-1,6-4 |
| ITF Turkey F6 | 2018/02/11 07:00 | Cheong Hwi Kim v Kazuki Shimizu | 5-7,0-6 |
| ITF Turkey F6 | 2018/02/10 09:00 | Alessandro Luisi v Cheong Hwi Kim | 6-2,4-6,6-7 |
| ITF Turkey F5 | 2018/02/03 07:00 | Cheong Hwi Kim v Hanyi Liu | 6-4,5-7,4-6 |
| ITF Turkey F4 | 2018/01/29 08:00 | Maxim Ratniuk v Cheong Hwi Kim | 6-1,6-2 |
| ITF Thailand F12 Qual | 2017/12/09 05:30 | Cheong Hwi Kim v Sung Jun Park | 1-6,1-6 |
| ITF Thailand F10 Qual | 2017/11/26 07:00 | Ryota Tanuma v Cheong Hwi Kim | 6-0,6-0 |
| ITF Thailand F10 Qual | 2017/11/25 04:00 | Patcharapol Kawin v Cheong Hwi Kim | 3-6,3-6 |
| Challenger Kyoto Qual | 2018/02/18 06:05 | Masaki Osafune v Takuto Niki | 3-6,2-6 |
| Challenger Toyota Qual | 2017/11/11 02:15 | Yuto Sakai v Masaki Osafune | 7-6,1-6,6-1 |
| ITF Guam F1 | 2017/06/22 03:25 | Masaki Osafune v Yuichi Ito | 2-6,4-6 |
| ITF Guam F1 | 2017/06/20 06:00 | Masaki Osafune v Steven Goh | 6-3,6-4 |
| ITF Japan F7 | 2017/06/06 04:05 | Renta Tokuda v Masaki Osafune | 6-1,3-6,6-1 |
| ITF Japan F7 | 2017/06/04 01:00 | Masaki Osafune v Shoma Kato | 6-3,6-3 |
| ITF Japan F6 Qual | 2017/05/29 03:40 | Yuki Matsuo v Masaki Osafune | 7-6,6-2 |
| ITF China F7 | 2017/05/17 03:40 | Dayne Kelly v Masaki Osafune | 6-1,6-1 |