Stadium: Court 8 Round: 62 Ground: Hardcourt outdoor
| Korea F3, Singles Qualifying | 2018/06/17 03:00 | Jeong, Young-Hoon v Yun, Jae Won | 6-2,6-2 |
| Korea F3, Singles Qualifying | 2018/06/16 02:00 | Jeong, Young-Hoon v Park, Sung Jun | 6-3,6-3 |
| ITF Korea F1 | 2018/06/08 02:00 | Jeamoon Lee v Jeong, Young-Hoon | 6-1,6-4 |
| ITF Korea F1 | 2018/06/07 04:00 | Cho, Hyeong Jin v Jeong, Young-Hoon | 0-6,1-6 |
| ITF Korea F1 | 2018/06/06 01:00 | Jeong, Young-Hoon v Hong, Seong Chan | 1-6,6-3,6-2 |
| ITF Korea F1 | 2018/06/04 01:00 | Jeong, Young-Hoon v Kim, Hyeong Don | 6-2,7-5 |
| ITF Korea F1 | 2018/06/03 01:00 | Jeong, Young-Hoon v Yoon, Ilsang | 6-4,5-7,6-2 |
| ITF Thailand F12 | 2017/12/13 04:15 | Jeong, Young-Hoon v Chen, Ti | 4-6,6-0,1-6 |
| Korea F3, Singles Qualifying | 2018/06/17 03:00 | Kim, Geun Jun v Lee, Dae-Hee | 7-5,7-5 |
| Korea F3, Singles Qualifying | 2018/06/16 03:30 | Park, Jaeyoung v Kim, Geun Jun | 1-6,0-6 |
| ITF Korea F2 | 2018/06/09 01:00 | Park, Minjong v Kim, Geun Jun | 6-1,6-4 |
| Korea F3, Singles Qualifying | 2017/06/11 04:30 | Kang, Ku Keon v Kim, Geun Jun | 6-2,6-2 |
| ITF Korea F2 Qual | 2017/06/03 03:00 | Kim, Geun Jun v Lim, Hyung-Chan | 6-7,0-6 |