Stadium: Court 3 Round: 54 Ground: Clay
| Luzhou, Simples W-ITF-CHN-09A | 2019/05/28 02:00 | Chen, Jiahui v He, Jiahuan | 6-0,6-2 |
| Luzhou, Simples W-ITF-CHN-09A | 2019/05/27 04:30 | He, Jiahuan v Liu, Yi | 4-6,6-0,11-9 |
| Hua Hin, Singles W-WITF-THA-07A | 2018/12/01 06:30 | He, Jiahuan v Sharipova, Elina | 1-6,1-6 |
| Hua Hin, Singles W-WITF-THA-07A | 2018/12/01 03:00 | Namwong, Puntila v He, Jiahuan | 1-6,1-6 |
| Hua Hin, Singles W-WITF-THA-07A | 2018/11/24 03:00 | He, Jiahuan v Timsit, Agathe | 0-6,0-6 |
| ITF Women Guiyang | 2018/08/11 07:05 | Zhenghua Xiao v He, Jiahuan | 6-0,6-0 |
| ITF Women Tianjin Qual | 2018/07/08 02:00 | He, Jiahuan v Zang, Jiaxue | 3-6,1-6 |
| ITF Women Naiman Qual | 2018/06/30 01:55 | He, Jiahuan v Yang, Qian | 4-6,2-6 |
| Jinan, Qualifications Simples W-ITF-CHN-18A | 2019/08/26 02:00 | Okuno, Ayaka v Meiling Wang | 5-7,1-6 |
| Guiyang, Singles W-ITF-CHN-17A | 2019/08/19 04:30 | Okuno, Ayaka v Jeong, Sunam | 3-6,2-6 |
| Landisville, Qualifications Simples W-ITF-USA-29A | 2019/08/08 15:35 | Okuno, Ayaka v Lin Zhu | 1-6,2-6 |
| Landisville, Qualifications Simples W-ITF-USA-29A | 2019/08/06 15:30 | Lizette Cabrera v Okuno, Ayaka | 6-2,6-0 |
| Landisville, Qualifications Simples W-ITF-USA-29A | 2019/08/05 18:45 | Okuno, Ayaka v Mariia Kostiuk | 6-2,6-2 |
| ITF W25 Fort Worth | 2019/07/29 14:00 | Okuno, Ayaka v Peet, Olivia | 7-5,3-6,9-11 |
| Ashland, Simples W-ITF-USA-23A | 2019/07/24 16:45 | Okuno, Ayaka v Catherine Harrison | 4-6,2-6 |
| Ashland, Simples W-ITF-USA-23A | 2019/07/23 13:00 | Marand, Sanaz v Okuno, Ayaka | 6-3,4-6,7-10 |