Geun Jun Kim
2018
| J2 CHUNCHEON | Quarter | |
| J3 BEIJING | Quarter | |
| J4 BEIJING | [5] | Semi |
| J4 JEJU | [3] | Win |
| J3 NAMANGAN | 1R | |
| J3 SHENZHEN | Quarter | |
| J4 DONGGUAN | [6] | Quarter |
Nation
KOR
World Ranking
ATP Ranking　1044th
Match Details
2018 J2 CHUNCHEON
| W | 1R | Chen Dong | 6-4 6-2 |
| W | 2R | Blu Baker | 7-5 4-6 7-5 |
| L | QF | Seonyong Han | 3-6 5-7 |
2018 J3 BEIJING
| W | 1R | Shaoyun Liu | 5-7 7-6 7-5 |
| W | 2R | Hiroki Sakagawa | 6-2 6-2 |
| L | QF | Yunchaokete Bu | 1-6 3-5 |
2018 J4 BEIJING
| W | 1R | Xiao Xiao | 6-1 2-0 |
| W | 2R | Yang Zhu | 6-4 6-2 |
| W | 3R | Yanjie Zheng | 1-6 6-4 7-6 |
| W | QF | Shunsuke Mitsui | 7-6 4-6 6-4 |
| L | SF | Fumiya Yoshino | 1-6 6-4 6-7 |
2018 J4 JEJU
| W | 2R | Yoon Hak Lee | 6-2 6-4 |
| W | 3R | Seungjoon Lim | 6-3 6-2 |
| W | QF | Wanseok Kang | 6-3 6-2 |
| W | SF | Dong Ju Kim | 6-4 6-3 |
| W | F | Minjong Park | 6-1 6-3 |
2018 J3 NAMANGAN
| L | 1R | Berk Ilkel | 3-6 6-2 1-6 |
2018 J3 SHENZHEN
| W | 1R | Pengyu Lu | 6-7 7-5 6-1 |
| W | 2R | Runyu Zhao | 6-4 6-3 |
| L | QF | Hikaru Shiraishi | 4-6 1-6 |
2018 J4 DONGGUAN
| W | 1R | Yi Ke Li | 6-1 6-3 |
| W | 2R | Le Tian Wang | 6-1 6-0 |
| W | 3R | Jin Gu | 6-4 6-2 |
| L | QF | Linang Xiao | 4-6 6-1 1-6 |
Junior Tennis Database is a site that summarizes the results of ITF junior tennis tournaments.
Number of registered tournaments: 14267, Number of registered players: 7,286, Number of registered results: 428,395