Stadium: Court 4 Round: 26
| ITF Vietnam F3 | 2018/05/15 03:00 | Nam Hoang Ly v Ji Hoon Son | 1-6,4-6 |
| ITF Vietnam F2 | 2018/05/08 03:00 | Nam Hoang Ly v Ji Hoon Son | 3-6,7-5,6-0 |
| ITF Vietnam F2 | 2018/05/06 04:00 | Ji Hoon Son v Noh, Sang-Woo | 6-2,6-1 |
| Challenger Seoul | 2018/05/03 08:30 | Jordan Thompson v Ji Hoon Son | 7-5,7-6 |
| Challenger Seoul Qual | 2018/04/30 03:00 | Wishaya Trongcharoenchaikul v Ji Hoon Son | 6-7,4-6 |
| Challenger Seoul Qual | 2018/04/29 02:00 | Ji Hoon Son v Sekiguchi, Shuichi | 6-2,7-6 |
| Challenger Seoul Qual | 2018/04/28 02:50 | Ji Hoon Son v Oh, Seong-Gook | 6-3,6-3 |
| ITF Turkey F5 | 2018/02/08 08:50 | Petrone, Alessandro v Ji Hoon Son | 6-2,7-6 |
| ITF Vietnam F3 | 2018/05/14 03:00 | Addison, Aaron v Kushnirovich, Gary | 3-6,3-6 |
| ITF Vietnam F2 | 2018/05/06 04:00 | Kushnirovich, Gary v Polkinghorne, Darren | 6-2,5-7,1-6 |
| ITF Vietnam F2 | 2018/05/05 03:00 | Kushnirovich, Gary v Alex Hunt | 6-1,6-2 |
| ITF Vietnam F1 | 2018/04/30 06:20 | Kushnirovich, Gary v Vucic, Ilija | 4-6,2-6 |
| ITF Russia F3 | 2018/03/13 10:20 | Kushnirovich, Gary v Ollert, Lukas | 0-6,6-7 |
| ITF Russia F3 | 2018/03/12 10:00 | Kushnirovich, Gary v Kalinin, Ivan | 7-6,6-2 |
| ITF Russia F3 | 2018/03/11 07:00 | Kushnirovich, Gary v Dorozhkin, Sergey | 6-1,6-2 |
| ITF Russia F1 | 2018/03/01 07:00 | Igoshin, Alexander v Kushnirovich, Gary | 6-3,7-6 |