Stadium: Court 3 Round: 54
| 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 Shuichi Sekiguchi | 6-2,7-6 |
| Challenger Seoul Qual | 2018/04/28 02:50 | Ji Hoon Son v Seong-Gook Oh | 6-3,6-3 |
| ITF Turkey F5 | 2018/02/08 08:50 | Alessandro Petrone v Ji Hoon Son | 6-2,7-6 |
| ITF Turkey F5 | 2018/02/06 08:30 | Ji Hoon Son v Ji Sung Nam | 4-6,7-6,6-1 |
| ITF Turkey F5 | 2018/02/05 07:30 | Jacopo Berrettini v Ji Hoon Son | 5-7,4-6 |
| ITF Turkey F5 | 2018/02/04 07:30 | Hanyi Liu v Ji Hoon Son | 1-6,0-6 |
| ITF Vietnam F2 | 2018/05/05 06:00 | Suthinan Tanthaseraneewat v Sang-Woo Noh | 3-6,0-6 |
| ITF China F2 | 2018/01/15 05:10 | Sang-Woo Noh v Rigele Te | 6-4,4-6,2-6 |
| ITF China F1 | 2018/01/08 03:30 | Sang-Woo Noh v Chukang Wang | 6-7,5-7 |
| ITF Thailand F6 | 2017/08/15 06:55 | Sami Reinwein v Sang-Woo Noh | 7-5,6-1 |
| ITF Thailand F5 Qual | 2017/08/06 02:30 | Sang-Woo Noh v Chien Hsun Lo | 7-5,1-6,5-7 |
| ITF Thailand F4 | 2017/07/31 06:35 | Nam Hoang Ly v Sang-Woo Noh | 6-2,6-2 |
| ITF Korea F4 | 2017/06/21 04:30 | Sang-Woo Noh v Jeamoon Lee | 2-6,5-7 |
| ITF Korea F4 | 2017/06/19 04:00 | Sang-Woo Noh v Min Gyeom Kim | 6-2,6-3 |