Sein Myoung
2023
| J200 STPOELTEN | 1R | |
| J200 VILLACH | [8] | 1R |
| J300 SARAWAK | [13] | 3R |
| J300 NONTHABURI | 1R | |
| J200 NONTHABURI | [11] | 3R |
2022
| JB1 OSAN-ASIACLOSED | [11] | Quarter |
| J2 CHUNCHEON | Quarter | |
| JAOSAKA | 2R | |
| J3 KAWAGUCHI | [4] | Semi |
| J5 YANGGU | [1] | Win |
| J4 JAKARTA | [2] | Semi |
| J4 DEDEDO-2 | [2] | Semi |
| J4 DEDEDO | [2] | Final |
| J5 YEONGWOL | [1] | Final |
| J5 GIMCHEON | [1] | Semi |
| J4 SUNCHANG | [1] | 2R |
2021
| J5 ANDONG-2 | [2] | Semi |
| J4 YANGGU | Win | |
| J5 YANGGU | 2R | |
| J5 SUNCHANG | 2R |
2020
Nation
KOR
Year-end Junior World Ranking
- Year-end 2023 661th
- Year-end 2022 209th
- Year-end 2021 683th
Match Details
2023 J200 STPOELTEN
| L | 1R | Sona Depesova | 1-6 6-2 6-7 |
2023 J200 VILLACH
| L | 1R | Lilli Tagger | 4-6 4-6 |
2023 J300 SARAWAK
| W | 2R | Ria Bhakta | 7-6 3-4 |
| L | 3R | Amy Sucha | 6-2 6-7 0-1 |
2023 J300 NONTHABURI
| L | 1R | Kamonwan Yodpetch | 6-7 3-6 |
2023 J200 NONTHABURI
| W | 2R | Aoka Nagasawa | 6-4 6-0 |
| L | 3R | Zhang-Qian Wei | 4-6 5-7 |
2022 JB1 OSAN-ASIACLOSED
| W | 1R | Hannah Kaile Shen | 6-0 6-0 |
| W | 2R | Azuna Ichioka | 6-2 6-1 |
| W | 3R | Salakthip Ounmuang | 4-6 6-2 6-1 |
| L | QF | Fang An Lin | 5-7 3-6 |
2022 J2 CHUNCHEON
| W | 1R | Vladislava Andreevskaya | 7-6 5-0 |
| W | 2R | Kaho Oyama | 6-0 6-1 |
| L | QF | Roisin Gilheany | 3-6 1-6 |
2022 JAOSAKA
| W | 1R | Rena Tanaka | 3-6 7-5 6-3 |
| L | 2R | Anya Murthy | 5-7 6-7 |
2022 J3 KAWAGUCHI
| W | 1R | Kazuki Oya | 6-0 6-0 |
| W | 2R | Kanna Soeda | 6-2 6-1 |
| W | QF | Kaede Tajima | 6-3 6-4 |
| L | SF | Hikari Yamamoto | 3-6 4-6 |
2022 J5 YANGGU
| W | 1R | Min Kyeong Kim | 6-0 6-0 |
| W | 2R | Eun Seo Kim | 6-1 6-3 |
| W | QF | Sooin Lee | 5-7 6-3 6-1 |
| W | SF | Ha Eum Lee | 4-6 6-0 6-2 |
| W | F | Suha Lee | 6-3 6-4 |
2022 J4 JAKARTA
| W | 2R | Yanan Hou | 3-6 6-1 6-3 |
| W | 3R | Kholisa Siti Maisaroh | 7-6 6-1 |
| W | QF | Emily Briggs | 3-0 |
| L | SF | Jiayou Li | 4-6 4-6 |
2022 J4 DEDEDO-2
| W | 2R | Mihana Saito | 6-3 6-2 |
| W | QF | Kanon Sawashiro | 6-4 6-3 |
| L | SF | Yuno Kitahara | 3-6 4-6 |
2022 J4 DEDEDO
| W | 2R | Hinata Furutani | 6-3 5-7 7-5 |
| W | QF | Rio Wakayama | 6-0 6-2 |
| W | SF | Liya Chu | 7-5 6-4 |
| L | F | Hyunyee Lee | 1-6 2-6 |
2022 J5 YEONGWOL
| W | 1R | Dayeon Lee | 7-5 6-1 |
| W | 2R | Su Been Lee | 6-1 6-0 |
| W | QF | Jieon Oh | 6-1 6-3 |
| W | SF | Se-Yeon Yang | 6-2 6-2 |
| L | F | Hyunyee Lee | 3-6 4-6 |
2022 J5 GIMCHEON
| W | 1R | Seo Yun Choi | 6-0 4-6 6-4 |
| W | 2R | Sooin Lee | 6-1 6-1 |
| W | QF | Haram Kim | 6-1 6-2 |
| L | SF | Hyunyee Lee | 5-7 6-1 6-7 |
2022 J4 SUNCHANG
| W | 1R | Jiyeon Lee | 6-2 6-1 |
| L | 2R | Ye Eun Kim | 2-6 3-6 |
2021 J5 ANDONG-2
| W | 1R | Ye Eun Kim | 1-6 6-2 6-4 |
| W | 2R | Jaeah Lee | 6-1 6-1 |
| W | QF | Haram Kim | 7-5 4-6 7-5 |
| L | SF | Gyeong Seo Lee | 3-6 5-7 |
2021 J4 YANGGU
| W | 1R | Haram Kim | 6-4 6-0 |
| W | 2R | Min Young Park | 6-2 6-1 |
| W | QF | Minseo Kim | 6-4 6-3 |
| W | SF | Sun Min Ha | 6-2 6-0 |
| W | F | Gyeong Seo Lee | 6-3 6-4 |
2021 J5 YANGGU
| W | 1R | Eun Ji Lee | 2-6 6-3 6-3 |
| L | 2R | Na Hyun Kang | 6-4 3-6 2-6 |
2021 J5 SUNCHANG
| W | 1R | Hyunyee Lee | 2-6 7-6 6-4 |
| L | 2R | Soo Ha Jang | 6-1 4-6 5-7 |
2020 J4 SHENZHEN-2
| W | 1R | Ling Su | 6-3 6-1 |
| L | 2R | Sheena Jade Masuda Karrasch | 5-7 4-6 |
2020 CHINA JUNIOR 2
| W | 1R | Ling Su | 6-3 6-1 |
| L | 2R | Sheena Jade Masuda Karrasch | 5-7 4-6 |
Junior Tennis Database is a site that summarizes the results of ITF junior tennis tournaments.
Number of registered tournaments: 9942, Number of registered players: 6,164, Number of registered results: 343,780