Stadium: Court 2 Round: 26 Ground: Hardcourt outdoor
| ITF China F9 | 2018/07/03 08:35 | Wang, Ruixuan v Son, Ji Hoon | 2-6,4-6 |
| ITF Korea F3 | 2018/06/19 07:00 | Son, Ji Hoon v Jeamoon Lee | 3-6,4-6 |
| ITF Korea F2 | 2018/06/15 01:00 | Kim, Cheong-Eui v Son, Ji Hoon | 2-6,6-3,7-5 |
| ITF Korea F2 | 2018/06/14 03:20 | Son, Ji Hoon v Niki, Takuto | 7-6,7-5 |
| ITF Korea F2 | 2018/06/13 04:45 | Son, Ji Hoon v Kang, Ku Keon | 6-1,6-4 |
| ITF Korea F1 | 2018/06/06 01:00 | Na, Jung-Woong v Son, Ji Hoon | 6-4,6-7,6-4 |
| ITF Vietnam F3 | 2018/05/18 03:00 | Son, Ji Hoon v Nam, Ji Sung | 1-6,2-6 |
| ITF Vietnam F3 | 2018/05/16 03:00 | Son, Ji Hoon v Kushnirovich, Gary | 4-6,7-6,6-1 |
| ITF China F9 | 2018/07/03 08:25 | Kousuke Ogura v Wang, Chuhan | 4-6,7-5,7-5 |
| ITF China F9 Qual | 2018/07/02 03:25 | Bingyu Yu v Kousuke Ogura | 1-6,2-6 |
| ITF China F9 Qual | 2018/07/01 02:00 | Barclay, David v Kousuke Ogura | 6-4,1-6,3-6 |
| ITF Japan F8 | 2018/06/13 02:25 | Saito, Takashi v Kousuke Ogura | 6-2,4-6,6-1 |
| ITF Japan F8 | 2018/06/11 00:30 | Kousuke Ogura v Numajiri, Keisuke | 6-2,6-1 |
| ITF Japan F8 | 2018/06/09 06:10 | Kishi, Ryota v Kousuke Ogura | 1-6,2-6 |
| ITF Japan F8 | 2018/06/09 01:00 | Takahiro Kubo v Kousuke Ogura | 0-6,3-6 |
| ITF Japan F7 Qual | 2018/06/03 01:00 | Onozawa, Arata v Kousuke Ogura | 6-2,6-1 |