Yifan Sun
2019
| JB1 SEOGWIPO | 1R | |
| J4 NONTHABURI-3 | [4] | 3R |
| J3 SARAWAK | [3] | Semi |
| J4 MIKICITY-2 | [4] | 2R |
| J4 HYDERABAD | [4] | Semi |
| J4 HOCHIMINHCITY | [4] | Win |
| J4 JAKARTA-2 | [7] | Quarter |
| J4 JAKARTA | [5] | Quarter |
| J5 SHIYAN | [5] | Semi |
| J3 MELBOURNE | 1R | |
| J4 MORNINGTON | Quarter | |
| J4 WELLINGTON | [7] | Quarter |
| J4 CAUSEWAYBAY | 2R | |
| J3 SAITAMA | 1R |
Nation
CHN
Year-end Junior World Ranking
- Year-end 2020 420th
- Year-end 2019 372th
Rival
janice tjen (0-2)
hsuan huang (2-0)
ke syuan jhang (2-0)
Match Details
2019 JB1 SEOGWIPO
| L | 1R | Yeonwoo Ku | 1-6 1-6 |
2019 J4 NONTHABURI-3
| W | 2R | Ai Maruyama | 6-2 6-0 |
| L | 3R | Yatawee Chimcham | 4-6 6-7 |
2019 J3 SARAWAK
| W | 2R | Lin Xin Tan | 6-2 6-0 |
| W | 3R | Sanjana Sirimalla | 6-1 6-0 |
| W | QF | Ji Woo Choi | 6-1 6-0 |
| L | SF | Madeleine Jessup | 2-6 4-6 |
2019 J4 MIKICITY-2
| W | 1R | Otoha Aoki | 6-3 6-3 |
| L | 2R | Shiori Ito | 1-6 3-6 |
2019 J4 HYDERABAD
| W | 1R | Veda Varshita Ranabothu | 2-6 6-2 6-0 |
| W | 2R | Sunskrithi Damera | 6-1 6-2 |
| W | QF | Rutuja Chaphalkar | 6-3 4-6 6-2 |
| L | SF | Pimrada Jattavapornvanit | 1-6 3-6 |
2019 J4 HOCHIMINHCITY
| W | 1R | Andrea Le | 6-0 6-0 |
| W | 2R | Ke Syuan Jhang | 6-3 6-3 |
| W | QF | Hsuan Huang | 6-4 6-1 |
| W | SF | Mio Mushika | 6-4 6-1 |
| W | F | Chia Yi Tsao | 6-2 6-3 |
2019 J4 JAKARTA-2
| W | 2R | Fitriana Sabrina | 6-3 6-2 |
| W | 3R | Hsuan Huang | 6-1 6-1 |
| L | QF | Janice Tjen | 4-6 5-7 |
2019 J4 JAKARTA
| W | 1R | Bella Ayu Septiani | 6-0 6-0 |
| W | 2R | Ke Syuan Jhang | 6-1 6-1 |
| L | QF | Janice Tjen | 6-7 0-6 |
2019 J5 SHIYAN
| W | 1R | Yiwendan Zhu | 6-3 6-2 |
| W | 2R | Yunfan- Shao | 6-0 6-4 |
| W | 3R | Jiayu Xu | 6-1 6-3 |
| W | QF | Qinglin Zang | 6-0 6-2 |
| L | SF | Yehua Zhou | 4-6 1-6 |
2019 J3 MELBOURNE
| L | 1R | Olivia Symons | 3-6 0-6 |
2019 J4 MORNINGTON
| W | 1R | Cassidy Mataia | 5-7 7-6 6-2 |
| W | 2R | Natasha Russell | 6-7 6-3 6-2 |
| L | QF | Mia Repac | 2-6 1-6 |
2019 J4 WELLINGTON
| W | 1R | Saoirse Breen | 6-1 6-1 |
| W | 2R | Cyan Sun | 6-4 6-3 |
| W | 3R | Mio Kozaki | 6-2 6-3 |
| L | QF | Katja Wiersholm | 0-6 1-6 |
2019 J4 CAUSEWAYBAY
| W | 1R | Kit Yi Kaye Au-Yeung | 6-1 1-6 6-2 |
| L | 2R | Xichen Zhao | 0-6 2-6 |
2019 J3 SAITAMA
| L | 1R | Manami Ukita | 6-7 2-6 |
Junior Tennis Database is a site that summarizes the results of ITF junior tennis tournaments.
Number of registered tournaments: 14549, Number of registered players: 7,577, Number of registered results: 451,713