Woohyuk Sim
2020
| J5 ANDONG | [3] | Win |
| J4 CAUSEWAYBAY | Final | |
| J4 SHENZHEN-2 | [14] | 3R |
2019
| JB1 SEOGWIPO | 2R | |
| J2 CHUNCHEON | 1R | |
| J5 YEONGWOL | Final | |
| J5 YANGGU | [15] | 3R |
| J5 GIMCHEON | 2R | |
| J5 SUNCHANG | 1R | |
| J4 JEJU | 1R |
2018
| J4 JEJU | 1R |
Nation
KOR
Year-end Junior World Ranking
- Year-end 2020 470th
- Year-end 2019 1024th
Rival
evan lee (2-0)
taeha jang (1-1)
jungwon park (1-1)
Match Details
J5 ANDONG
| W | 1R | Beomchan Oh | 6-4 7-5 |
| W | 2R | Chang Hun Lee | 2-6 6-2 6-0 |
| W | QF | Dong Hwan Kim | 6-4 3-6 6-4 |
| W | SF | Seonung Cho | 6-3 2-6 6-3 |
| W | F | Hyeondeok Yoon | 2-6 6-2 6-1 |
J4 CAUSEWAYBAY
| W | 1R | Caymus Hei Tung Choi | 6-2 4-6 6-2 |
| W | 2R | Matthew Garcia | 6-2 7-5 |
| W | QF | Yi Zhou | 7-5 6-4 |
| W | SF | Evan Lee | 6-1 7-6 |
| L | F | Yunseok Jang | 1-6 2-6 |
J4 SHENZHEN-2
| W | 1R | Zhuyuan Li | 6-3 7-5 |
| W | 2R | Evan Lee | 6-1 6-2 |
| L | 3R | Guanglin Wen | 5-7 2-6 |
JB1 SEOGWIPO
| W | 1R | Jeong-An Kim | 7-5 6-7 6-2 |
| L | 2R | Sebastian Nothhaft | 2-6 1-6 |
J2 CHUNCHEON
| L | 1R | Philip Sekulic | 2-6 7-5 6-7 |
J5 YEONGWOL
| W | 1R | Jonathan Cha | 6-1 6-4 |
| W | 2R | Jungwon Park | 7-6 7-6 |
| W | 3R | Min Seong Kim | 7-5 6-4 |
| W | QF | Gun Hyoung Kim | 6-2 6-3 |
| W | SF | Taeha Jang | 6-1 6-3 |
| L | F | Dong Ju Kim | 4-6 3-6 |
J5 YANGGU
| W | 1R | Geonwoo Lee | 6-4 6-2 |
| W | 2R | Gunuk Kang | 6-2 3-6 6-3 |
| L | 3R | Taeha Jang | 7-5 4-6 4-6 |
J5 GIMCHEON
| W | 1R | Min Seob Kim | 6-3 6-4 |
| L | 2R | Hwijin Jung | 4-6 7-6 1-6 |
J5 SUNCHANG
| L | 1R | Jungwon Park | 6-7 6-1 5-7 |
J4 JEJU
| L | 1R | Minseong Kang | 7-6 2-6 2-6 |
J4 JEJU
| L | 1R | Jae Myeong Lee | 3-6 7-5 1-6 |
Junior Tennis Database is a site that summarizes the results of ITF junior tennis tournaments.
Number of registered tournaments: 14379, Number of registered players: 7,503, Number of registered results: 447,330