| ITF W15 Daegu | 05/30 01:00 | - | [315] Dayeon Back v Carol Young Suh Lee [394] | 3-6,6-2,6-4 | |
| ITF W15 Daegu | 05/29 01:00 | - | Dayeon Back v Yujin Kim | 6-1,6-1 | |
| ITF W15 Daegu | 05/28 02:30 | - | Dayeon Back v Cherry Kim | 6-3,6-1 | |
| ITF W35 Andong | 05/23 01:00 | - |
[314] Dayeon Back v
Xiaodi You
[347] 
|
6-4,1-6,4-6 | |
| ITF W35 Andong | 05/22 04:23 | - | [314] Dayeon Back v Ayumi Koshiishi [395] | 6-0,6-3 | |
| ITF W35 Andong | 05/21 02:30 | - |
Dayeon Back v
KSV Oudenaarde
|
6-3,6-1 | |
| ITF W35 Changwon | 05/16 01:40 | - | [303] Dayeon Back v Janice Tjen [372] | 6-1,6-7,3-5 | |
| ITF W35 Changwon | 05/15 03:00 | - | Dayeon Back v Ya-Hsuan Lee | 7-5,6-2 | |
| ITF W35 Changwon | 05/14 03:00 | - | [303] Dayeon Back v Punnin Kovapitukted [359] | 6-3,4-6,6-3 | |
| ITF W35 Goyang | 05/10 06:00 | - | [372] Janice Tjen v Dayeon Back [303] | 6-1,6-0 | |
| ITF W35 Goyang | 05/08 02:30 | - | Chihiro Muramatsu v Dayeon Back | 3-6,6-3,3-6 | |
| ITF W35 Goyang | 05/07 01:00 | - |
[415] Rina Saigo
v
Dayeon Back [303] |
7-6,3-6,4-6 | |
| ITF W35 Goyang | 04/30 01:00 | - |
[299] Dayeon Back v
Saki Imamura
[450] 
|
3-6,3-6 | |
| ITF W100 Tokyo | 04/22 04:00 | - |
[258] Mei Yamaguchi
v
Dayeon Back [299] |
6-2,6-2 | |
| Billie Jean King Cup | 04/12 11:10 | - |
[316] Sahaja Yamalapalli
v
Dayeon Back [299] |
3-6,4-6 | |
| Billie Jean King Cup | 04/11 11:40 | - |
[299] Dayeon Back v
Hong Yi Cody Wong
[378] 
|
6-3,7-5 | |
| Billie Jean King Cup | 04/10 11:10 | - |
[299] Dayeon Back v
Mananchaya Sawangkaew
[110] 
|
4-6,2-6 | |
| Billie Jean King Cup | 04/09 10:40 | - |
[299] Dayeon Back v
Lulu Sun
[45] 
|
4-6,1-6 | |
| Billie Jean King Cup | 04/08 10:55 | - |
[299] Dayeon Back v
Joanna Garland
[207] 
|
6-4,2-6,6-4 | |
| ITF W15 Nonthaburi | 03/23 03:00 | - | Dayeon Back v Anchisa Chanta | 6-7,3-6 | |
| ITF W15 Nonthaburi | 03/22 03:00 | - |
[335] Dayeon Back v
Yuki Naito
[281] 
|
6-4,5-1 | |
| ITF W15 Nonthaburi | 03/21 03:00 | - |
Dayeon Back v
Rinko Matsuda
|
7-5,6-2 | |
| ITF W15 Nonthaburi | 03/20 03:00 | - | Dayeon Back v Kamonwan Yodpetch | 6-0,7-5 | |
| ITF W15 Nonthaburi | 03/19 03:00 | - | Dayeon Back v IFK Haninge/Brandbergen U19 | 2-6,6-4,6-0 | |
| ITF W35 Nonthaburi | 03/16 03:00 | - |
[323] Dayeon Back v
Eunhye Lee
[419] 
|
3-6,4-6 | |
| ITF W35 Nonthaburi | 03/15 03:00 | - | [433] Polina Iatcenko v Dayeon Back [323] | 5-7,2-6 | |
| ITF W35 Nonthaburi | 03/14 04:30 | - |
[323] Dayeon Back v
Ekaterina Reyngold
[252] 
|
6-7,6-2,6-2 | |
| ITF W35 Nonthaburi | 03/13 03:00 | - | [323] Dayeon Back v Francesca Pace [442] | 6-4,6-3 | |
| ITF W35 Nonthaburi | 03/11 03:00 | - | Dayeon Back v Mika Buchnik | 6-0,6-1 | |
| ITF W35 Launceston | 02/28 00:00 | - |
[286] Lizette Cabrera
v
Dayeon Back [321] |
6-1,6-1 |
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