Onyu Choi
2023
| J300Wanju | [6] | 1R |
| J200Chuncheon | [4] | 2R |
| J200Gladbeck | [8] | 2R |
| J300Bamberg | [15] | 2R |
| J300Santacrocesullarno | 1R | |
| J200Prato | [6] | 2R |
| J500Offenbach | 1R | |
| J300Beaulieu-Sur-Mer | 1R | |
| J200Istres | [6] | 1R |
| J500Criciuma | [12] | 3R |
| J300Portoalegre | 1R | |
| J300Asuncion | 2R | |
| Australian Open Junior | 2R | |
| J300Traralgon | 2R |
2022
| Jb1Osan-Asiaclosed | [7] | Final |
| J2Chuncheon | [5] | Quarter |
| J3Kualalumpur | [2] | Final |
| J3Sarawak | [10] | 2R |
| J1Sarawak | Semi | |
| J3Cancun-4 | [7] | Quarter |
| J3Santodomingo-2 | [7] | Quarter |
| J3Santodomingo | [8] | Semi |
| J3Sanjose-2 | [4] | Quarter |
| J4Sunchang | [3] | Win |
| J4Jeju | [2] | Win |
| J4Kathmandu-2 | Semi | |
| J4Kathmandu | Semi |
2021
| J5Gimcheon | [7] | 1R |
| J5Sunchang | [8] | Semi |
Nation
KOR
Year-end Junior World Ranking
- Year-end 2023 230th
- Year-end 2022 118th
- Year-end 2021 1121th
- Year-end 2020 1158th
Rival
Ena Koike (0-3)
Alessandra Teodosescu (0-2)
Monika Stankiewicz (0-2)
Nahyeong Cho (2-0)
Olivia Lincer (0-2)
Match Details
2023 J300Wanju
| L | 1R | Shihomi Li Xuan Leong | 6-3 1-6 2-6 |
2023 J200Chuncheon
| W | 1R | Hinata Furutani | 6-2 4-6 7-6 |
| L | 2R | Hikari Yamamoto | 3-6 4-6 |
2023 J200Gladbeck
| W | 1R | Oliwia Orlinska | 6-4 6-4 |
| L | 2R | Marie Slamenikova | 3-6 2-6 |
2023 J300Bamberg
| L | 2R | Eliska Forejtkova | 4-6 6-3 1-6 |
2023 J300Santacrocesullarno
| L | 1R | Francesca Gandolfi | 3-6 1-3 |
2023 J200Prato
| W | 1R | Elena Francese | 6-1 6-2 |
| L | 2R | Greta Petrillo | 6-1 4-6 3-6 |
2023 J500Offenbach
| L | 1R | Daria Yesypchuk | 1-6 4-6 |
2023 J300Beaulieu-Sur-Mer
| L | 1R | Alessandra Teodosescu | 3-6 3-6 |
2023 J200Istres
| L | 1R | Daphnee Mpetshi Perricard | 6-4 6-7 4-6 |
2023 J500Criciuma
| W | 1R | Paola Ueno Dalmonico | 6-1 6-1 |
| W | 2R | Gabriella Mikaul | 6-3 6-1 |
| L | 3R | Laura Samson | 2-6 7-5 2-6 |
2023 J300Portoalegre
| L | 1R | Alexia Harmon | 6-7 3-6 |
2023 J300Asuncion
| W | 1R | Madeleine Jessup | 7-6 6-1 |
| L | 2R | Alessandra Teodosescu | 3-6 3-6 |
2023 Australian Open Junior
| W | 1R | Gabby Gregg | 2-6 6-3 7-5 |
| L | 2R | Sayaka Ishii | 0-6 1-6 |
2023 J300Traralgon
| W | 1R | Carolina Kuhl | 6-3 2-6 6-4 |
| L | 2R | Ena Koike | 6-4 3-6 1-6 |
2022 Jb1Osan-Asiaclosed
| W | 1R | Yanan Hou | 6-4 1-6 6-3 |
| W | 2R | Su Been Lee | 6-1 6-0 |
| W | 3R | Rira Kosaka | 6-2 6-4 |
| W | QF | Yujin Kim | 6-2 6-0 |
| W | SF | Fang An Lin | 7-5 6-4 |
| L | F | Ena Koike | 4-6 3-6 |
2022 J2Chuncheon
| W | 1R | Aoka Nagasawa | 6-1 6-0 |
| W | 2R | Gyeong Seo Lee | 7-6 4-6 6-2 |
| L | QF | Ena Koike | 1-6 2-6 |
2022 J3Kualalumpur
| W | 2R | Hang Nguyen | 6-2 6-1 |
| W | 3R | Yu-Ning Tsai | 7-5 6-2 |
| W | QF | Sue Yan Tan | 6-3 0-6 6-0 |
| W | SF | Dune Vaissaud | 6-3 6-0 |
| L | F | Gaeul Jang | 2-6 6-1 1-6 |
2022 J3Sarawak
| L | 2R | Wanli Yip | - - - |
2022 J1Sarawak
| W | 2R | Dune Vaissaud | 6-3 6-4 |
| W | 3R | Shruti Ahlawat | 4-6 6-3 6-0 |
| W | QF | Gloriana Nahum | 3-6 6-3 6-4 |
| L | SF | Monika Stankiewicz | 2-6 0-6 |
2022 J3Cancun-4
| W | 2R | Amy Lee | 6-3 6-1 |
| W | 3R | Mariana Reding | 6-1 6-1 |
| L | QF | Valeria Ray | 1-6 1-6 |
2022 J3Santodomingo-2
| W | 1R | Emma Dong | 6-2 6-1 |
| W | 2R | Zehra Suko | 6-3 6-2 |
| L | QF | Olivia Lincer | 2-6 1-6 |
2022 J3Santodomingo
| W | 1R | Sachely Carrera | 6-1 6-0 |
| W | 2R | Yontha Tadoum | 6-1 6-1 |
| W | QF | Scarlett Nicholson | 3-6 6-2 6-0 |
| L | SF | Olivia Lincer | 3-6 2-6 |
2022 J3Sanjose-2
| W | 1R | Sophia Webster | 7-5 6-0 |
| W | 2R | Yasmin Vavrova | 6-1 6-1 |
| L | QF | Xintong Zhou | 4-6 7-6 3-6 |
2022 J4Sunchang
| W | 1R | Eunsoo Lee | 6-1 6-0 |
| W | 2R | Ha Eum Lee | 6-0 6-1 |
| W | QF | Hui On Choi | 6-0 6-3 |
| W | SF | Nahyeong Cho | 6-2 6-0 |
| W | F | Sun Min Ha | 6-3 6-0 |
2022 J4Jeju
| W | 1R | Leehanbyeol Lee | 6-0 6-1 |
| W | 2R | Jieon Oh | 7-6 6-0 |
| W | QF | Se-Yeon Yang | 6-0 6-0 |
| W | SF | Nahyeong Cho | 6-1 6-0 |
| W | F | Soo Ha Jang | 6-2 |
2022 J4Kathmandu-2
| W | 1R | Sreenidhi Reddy Amireddy | 6-0 6-0 |
| W | 2R | Saloni Tamang | 6-2 6-3 |
| W | QF | Hanna Telzynska | 6-2 6-3 |
| L | SF | Yifei Huang | 4-6 6-2 3-6 |
2022 J4Kathmandu
| W | 1R | Lakshmi Gowda | 6-4 6-1 |
| W | 2R | Isha Shree Shah | 6-1 6-0 |
| W | QF | Ishi Maheshwari | 6-0 6-2 |
| L | SF | Monika Stankiewicz | 7-6 4-6 4-6 |
2021 J5Gimcheon
| L | 1R | Hyunyee Lee | 4-6 3-6 |
2021 J5Sunchang
| W | 1R | Seonghyeon Son | 6-1 6-2 |
| W | 2R | Juae Shin | 3-6 6-3 6-3 |
| W | QF | Sun Min Ha | 6-4 7-5 |
| L | SF | Yujin Kim | 3-6 2-6 |
Junior Tennis Database is a site that summarizes the results of ITF junior tennis tournaments.
Number of registered tournaments: 9408, Number of registered players: 5,880, Number of registered results: 309,532