Ya Yi Yang
2021
| US OPEN JUNIOR | 1R | |
| J1 COLLEGEPARK | [15] | 1R |
2020
2019
| JB1 SEOGWIPO | [4] | Semi |
| J2 CHUNCHEON | [1] | 2R |
| JAOSAKA | Quarter | |
| J2 BEIJING-2 | [8] | Win |
| J3 GUANGZHOU | [6] | Final |
| J3 MOENCHENGLADBACH | [3] | Semi |
| J3 NEUNKIRCHEN | [8] | Quarter |
| J2 SHANGHAI | [7] | 2R |
| J4 CHANGHUA | [6] | 2R |
| J2 TAINAN | Quarter | |
| J2 BEIJING | 2R | |
| J1 SARAWAK | Quarter | |
| J1 NONTHABURI | 2R | |
| J2 KOLKATA | 2R |
2018
| J4 KAOHSIUNG | [4] | 3R |
| J2 CAIRO-2 | Quarter | |
| J2 CAIRO | Quarter | |
| J4 HOCHIMINHCITY | [7] | Quarter |
| J2 TAINAN | 1R | |
| J4 CAUSEWAYBAY | 2R |
2017
Nation
TPE
Age
21 years old (born in 2004)
World Ranking
WTA Ranking　623th
Year-end Junior World Ranking
- Year-end 2021 819th
- Year-end 2020 66th
- Year-end 2019 63th
Rival
yeonwoo ku (0-2)
matilda mutavdzic (1-1)
jiaqi wang (2-0)
erika matsuda (1-1)
jiangxue han (1-1)
Match Details
AUSTRALIAN OPEN JUNIOR
| W | 1R | India Houghton | 1-6 6-3 6-3 |
| L | 2R | Olivia Gadecki | 5-7 7-6 4-6 |
J1 TRARALGON
| L | 1R | Matilda Mutavdzic | 6-7 6-7 |
JB1 SEOGWIPO
| W | 1R | Na Hyun Kang | 6-4 6-1 |
| W | 2R | Tianmi Mi | 6-1 6-2 |
| W | 3R | Pimrada Jattavapornvanit | 6-2 1-6 7-6 |
| W | QF | Jiaqi Wang | 6-2 6-2 |
| L | SF | Yeonwoo Ku | 4-6 2-6 |
J2 CHUNCHEON
| W | 1R | Jiaqi Huang | 6-2 6-3 |
| L | 2R | Erika Matsuda | 6-2 6-7 4-6 |
JAOSAKA
| W | 1R | Matilda Mutavdzic | 7-5 6-3 |
| W | 2R | Mizuki Yamaguchi | 6-3 6-3 |
| W | 3R | Mia Repac | 6-3 4-6 6-1 |
| L | QF | Diane Parry | 0-6 1-6 |
J2 BEIJING-2
| W | 1R | Le Yi Liu | 3-6 7-6 6-3 |
| W | 2R | Lan Mi | 6-2 6-0 |
| W | QF | Zhuoxuan Bai | 7-6 6-4 |
| W | SF | Zongyu Li | 6-3 6-3 |
| W | F | Amy Stevens | 1-6 6-1 6-2 |
J3 GUANGZHOU
| W | 1R | Yiming Dang | 6-2 6-3 |
| W | 2R | Yizhen Zheng | 6-1 6-3 |
| W | QF | Jiaqi Wang | 7-6 3-6 6-2 |
| W | SF | Xin Tong Wang | 7-5 6-4 |
| L | F | Na Dong | 1-6 6-3 4-6 |
J3 MOENCHENGLADBACH
| W | 2R | Sophie Greiner | 7-5 6-2 |
| W | 3R | Deborah Muratovic | 6-1 6-2 |
| W | QF | Alessandra Simone | 7-5 4-6 6-2 |
| L | SF | Angelina Wirges | 6-7 1-6 |
J3 NEUNKIRCHEN
| W | 1R | Noma Noha Akugue | 6-3 3-6 6-3 |
| W | 2R | Mayya Gorbunova | 6-4 6-1 |
| L | QF | Skyler Marie Grace Grishuk | 6-3 4-6 3-6 |
J2 SHANGHAI
| W | 1R | Yuhan Liu | 7-5 4-6 7-6 |
| L | 2R | Yujiao Che | 7-6 4-6 4-6 |
J4 CHANGHUA
| L | 2R | Madeleine Jessup | 4-2 1-4 2-4 |
J2 TAINAN
| W | 1R | Yajing Cao | 6-2 6-3 |
| W | 2R | Saki Imamura | 6-3 6-4 |
| L | QF | Yeonwoo Ku | 3-6 4-6 |
J2 BEIJING
| W | 1R | Zhenghua Xiao | 4-6 6-4 6-4 |
| L | 2R | Jiangxue Han | 6-7 2-6 |
J1 SARAWAK
| W | 1R | Anastasia Astakhova | 6-2 6-2 |
| W | 2R | Funa Kozaki | 3-6 7-6 6-3 |
| W | 3R | Erika Matsuda | 6-2 7-6 |
| L | QF | Punnin Kovapitukted | 3-6 3-6 |
J1 NONTHABURI
| W | 1R | Natcharee Teerachodjiranon | 6-1 6-0 |
| L | 2R | Priska Madelyn Nugroho | 1-6 6-2 3-6 |
J2 KOLKATA
| W | 1R | Jiangxue Han | 6-1 6-4 |
| L | 2R | Anastasia Astakhova | 2-6 4-6 |
J4 KAOHSIUNG
| W | 2R | Hsuan Huang | 6-2 6-3 |
| L | 3R | Jimin Kwon | 6-7 1-6 |
J2 CAIRO-2
| W | 1R | Aisha Niyonkuru | 7-5 6-3 |
| W | 2R | Hania Abouelsaad | 6-1 6-0 |
| L | QF | Maria Bondarenko | 6-2 3-6 2-6 |
J2 CAIRO
| W | 1R | Zeynep Sena Sarioglan | 6-4 5-0 |
| W | 2R | Margaux Rouvroy | 4-6 6-2 6-4 |
| L | QF | Diana Shnaider | 6-0 3-6 5-7 |
J4 HOCHIMINHCITY
| W | 1R | Mizuki Watanabe | 6-1 6-2 |
| W | 2R | Xiaoyan Xue | 6-3 6-2 |
| L | QF | Sarah Kate Weekley | 3-6 7-6 2-6 |
J2 TAINAN
| L | 1R | Thasaporn Naklo | 0-6 7-6 5-7 |
J4 CAUSEWAYBAY
| W | 1R | Yijia Jiao | 6-2 7-6 |
| L | 2R | Na Dong | 2-6 0-6 |
J4 KAOHSIUNG
| L | 1R | Nanari Katsumi | 6-4 2-6 5-7 |
Junior Tennis Database is a site that summarizes the results of ITF junior tennis tournaments.
Number of registered tournaments: 14431, Number of registered players: 7,550, Number of registered results: 449,006