Dong Geon Kim
2023
| J30 YEONGWOL | [3] | Quarter |
| J300 WANJU | 1R | |
| J100 ANDONG | 1R | |
| J60 SUNCHANG | [8] | Semi |
| J60 ANDONG | [7] | Quarter |
| J30 GIMCHEON | [3] | Win |
2022
| J3 ANDONG | 1R | |
| JB1 OSAN-ASIACLOSED | 2R | |
| J5 YANGGU | [3] | 1R |
| J5 ANDONG | [2] | Quarter |
| J4 DEDEDO-2 | [6] | Quarter |
| J4 DEDEDO | [6] | Quarter |
| J5 YEONGWOL | [6] | 1R |
| J5 GIMCHEON | [5] | Semi |
| J4 SUNCHANG | 1R | |
| J4 JEJU | [7] | Quarter |
2021
| J5 GIMCHEON | Quarter |
Nation
KOR
Year-end Junior World Ranking
- Year-end 2023 913th
- Year-end 2022 699th
- Year-end 2021 1202th
Match Details
2023 J30 YEONGWOL
| W | 1R | Inki Hong | 6-2 6-1 |
| W | 2R | Minwoo Kim | 7-6 7-6 |
| L | QF | Juchan Hwang | 5-7 5-7 |
2023 J300 WANJU
| L | 1R | Donghyun Hwang | 5-7 3-6 |
2023 J100 ANDONG
| L | 1R | Hugh Winter | 2-6 3-6 |
2023 J60 SUNCHANG
| W | 1R | Taeyul Kim | 6-2 7-5 |
| W | 2R | Hae Chang Lee | 6-3 6-2 |
| W | QF | Taewan Joo | 6-4 6-7 7-5 |
| L | SF | Hyeon Seok Seo | 6-7 1-4 |
2023 J60 ANDONG
| W | 1R | Kamonpanyakorn Thadpong | 6-2 6-1 |
| W | 2R | Yamato Yukawa | 7-6 6-2 |
| L | QF | Moobeen Kim | 7-5 1-6 4-6 |
2023 J30 GIMCHEON
| W | 1R | Ho Jun Park | 6-1 7-5 |
| W | 2R | Juwan Bae | 6-4 6-4 |
| W | QF | Dong Kyu Lee | 6-2 6-4 |
| W | SF | Taewan Joo | 3-6 6-3 6-4 |
| W | F | Woojun Kang | 6-4 1-6 6-1 |
2022 J3 ANDONG
| L | 1R | Minghui Zhang | 6-7 6-7 |
2022 JB1 OSAN-ASIACLOSED
| W | 1R | Wonmin Kim | 7-5 6-0 |
| L | 2R | Shingo Masuda | 0-6 2-6 |
2022 J5 YANGGU
| L | 1R | Dong Hyeon Euom | 6-7 4-6 |
2022 J5 ANDONG
| W | 1R | Connor Hegarty | 6-4 6-3 |
| W | 2R | Jaejun Kim | 6-4 6-1 |
| L | QF | Woong Bi Lee | 1-6 1-6 |
2022 J4 DEDEDO-2
| W | 1R | Maki Takei | 6-2 6-3 |
| W | 2R | Ram Rithvik Chauhan Mude | 6-4 6-2 |
| L | QF | Naoya Honda | 3-6 2-6 |
2022 J4 DEDEDO
| W | 1R | Shuya Machida | 6-0 6-0 |
| W | 2R | Bob Chan | 6-1 6-0 |
| L | QF | Dylan Charlap | 3-6 3-6 |
2022 J5 YEONGWOL
| L | 1R | Min Ho Ko | 4-6 6-7 |
2022 J5 GIMCHEON
| W | 1R | Jung Hun Seo | 7-6 6-0 |
| W | 2R | Seon Jun Ji | 6-4 6-0 |
| W | QF | Taewan Joo | 7-5 6-3 |
| L | SF | Jiho Lee | 6-1 6-7 0-6 |
2022 J4 SUNCHANG
| L | 1R | Woohyuk Chang | 6-3 4-6 3-6 |
2022 J4 JEJU
| W | 1R | Yangho Park | 6-1 6-2 |
| W | 2R | Ju Hun Choo | 7-5 6-3 |
| L | QF | Donghyun Hwang | 2-6 2-6 |
2021 J5 GIMCHEON
| W | 1R | Min Seong Kim | 6-4 6-4 |
| W | 2R | Jun Yeol Bae | 7-6 6-1 |
| L | QF | Taewan Joo | 7-6 2-6 0-6 |
Junior Tennis Database is a site that summarizes the results of ITF junior tennis tournaments.
Number of registered tournaments: 9670, Number of registered players: 6,052, Number of registered results: 333,569