Stadium: Court 5 Round: 26 Ground: Hardcourt outdoor
| ITF W15 Gimcheon | 2019/06/19 02:45 | Sunam Jeong v Dayeon Back | 7-6,6-4 |
| ITF W15 Sharm El Sheikh | 2022/03/24 08:00 | Dayeon Back v Anna Brogan | 0-6,2-6 |
| ITF W15 Sharm El Sheikh | 2022/03/23 09:15 | Yexin Ma v Dayeon Back | 7-6,2-6,5-7 |
| ITF W15 Sharm El Sheikh | 2022/03/15 10:15 | Kristina Dmitruk v Dayeon Back | 6-7,6-2,10-3 |
| ITF W15 Sharm El Sheikh | 2022/03/14 11:30 | Nino Natsvlishvili v Dayeon Back | 2-6,1-6 |
| ITF W15 Sharm El Sheikh | 2022/03/09 08:00 | Dayeon Back v Tamari Gagoshidze | 6-2,2-6,5-7 |
| ITF W15 Sharm El Sheikh | 2022/03/03 09:35 | Hong Yi Cody Wong v Dayeon Back | 6-3,6-2 |
| ITF W15 Sharm El Sheikh | 2022/03/02 08:00 | Dayeon Back v Ilinca D Amariei | 7-5,6-3 |
| WTA Seoul | 2021/12/20 07:00 | Dayeon Back v Su Jeong Jang | 6-3,3-6,3-6 |
| ITF W25 Navi Mumbai | 2019/12/22 11:30 | Barbara Haas v Sunam Jeong | 4-6,6-2,7-6 |
| ITF W25 Navi Mumbai | 2019/12/21 10:30 | Sunam Jeong v Olga Doroshina | 6-3,3-6,6-3 |
| ITF W25 Navi Mumbai | 2019/12/20 10:00 | Peangtarn Plipuech v Sunam Jeong | 2-6,2-6 |
| ITF W25 Navi Mumbai | 2019/12/19 09:30 | Sunam Jeong v Ulrikke Eikeri | 6-3,7-5 |
| ITF W25 Navi Mumbai | 2019/12/17 13:15 | Shalimar Talbi v Sunam Jeong | 1-6,1-6 |
| ITF W25 Navi Mumbai | 2019/12/16 10:30 | Sunam Jeong v Sravya Shivani Chilakalapudi | 6-2,6-0 |
| ITF W25 Navi Mumbai | 2019/12/15 07:00 | Sunam Jeong v Dakshata Girishkumar Patel | 6-2,6-0 |
| ITF W15 Nonthaburi | 2019/11/30 04:40 | Nigina Abduraimova v Sunam Jeong | 6-4,6-4 |