Dayeon Back
Nation
KOR
Age
23 years old (born in 2002)
World Ranking
WTA Ranking　299th
Year-end Junior World Ranking
- Year-end 2020 54th
- Year-end 2019 37th
- Year-end 2018 192th
Match Details
2020 Australian Open Junior
| W | 1R | Ziva Falkner | 6-7 6-2 4-1 |
| L | 2R | Priska Madelyn Nugroho | 5-7 6-4 5-7 |
2019 China Junior 8
| W | 1R | Meng Yi Chen | 6-0 6-3 |
| W | 2R | Xin Tong Wang | 6-2 6-2 |
| L | QF | Zhuoxuan Bai | 4-6 5-7 |
2019 China Junior 4
| W | 1R | Xiaoyan Xue | 6-0 6-2 |
| W | 2R | Zhuoxuan Bai | 7-5 6-4 |
| W | QF | Zongyu Li | 7-5 6-2 |
| W | SF | Evelina Kontareva | 6-4 7-6 |
| W | F | Jiangxue Han | 6-1 6-0 |
Junior Tennis Database is a site that summarizes the results of ITF junior tennis tournaments.
Number of registered tournaments: 5774, Number of registered players: 3,011, Number of registered results: 222,093