Stadium: I Round: 26
| ITF Korea F5 | 2018/08/21 01:00 | Woo Hyeok Jang v Dae-Hee Lee | 6-0,6-1 |
| ITF Korea F5 | 2018/08/20 01:00 | Woo Hyeok Jang v Byeonghun Kim | 6-1,6-2 |
| ITF Korea F5 | 2018/08/19 02:00 | Woo Hyeok Jang v Jaeyoung Park | 6-3,6-2 |
| ITF Korea F5 | 2018/08/18 01:00 | Sang-Woo Noh v Woo Hyeok Jang | 4-6,4-6 |
| Challenger Gwangju Qual | 2018/08/12 01:30 | Woo Hyeok Jang v Σιντχάρθ Ρόουατ | 0-6,3-6 |
| Challenger Gwangju Qual | 2018/08/11 03:20 | Woo Hyeok Jang v Sung Jun Park | 6-4,6-3 |
| ITF Korea F3 Qual | 2018/06/17 02:00 | Mitchell Thomas McDaniels v Woo Hyeok Jang | 7-5,6-2 |
| ITF Korea F2 | 2018/06/09 01:00 | Woo Hyeok Jang v Sung Hun Kim | 2-6,2-6 |
| ITF Korea F5 | 2018/08/21 01:00 | Ρεν Νακαμούρα v Τζι Χουν Σον | 6-4,4-6,3-6 |
| Τσάλεντζερ Γκουανγκτζού | 2018/08/14 06:30 | Bradley Mousley v Τζι Χουν Σον | 6-3,6-2 |
| Challenger Gwangju Qual | 2018/08/13 01:00 | Yuya Kibi v Τζι Χουν Σον | 3-6,4-6 |
| Challenger Gwangju Qual | 2018/08/11 03:35 | Τζι Χουν Σον v Ξιν Γκάο | 7-5,6-3 |
| ITF China F10 | 2018/07/10 02:00 | Τζι Χουν Σον v Ξιν Γκάο | 6-7,6-7 |
| ITF China F9 | 2018/07/08 03:00 | Τζι Χουν Σον v Γιαν Μπάι | 7-6,4-6,4-6 |
| ITF China F9 | 2018/07/07 07:25 | Σεόνγκ Τσαν Χονγκ v Τζι Χουν Σον | 6-7,1-6 |
| ITF China F9 | 2018/07/06 03:00 | Hao Wu v Τζι Χουν Σον | 1-6,5-7 |