| ITF Women Nanning | 10/20 02:00 | 62 | Li, Xiuyuan v Sijia Wei | 0-6,1-6 | |
| ITF Women Wuhan | 05/15 04:10 | 25 | Sijia Wei v AL Nabhani, Fatma | 5-7,3-6 | |
| Quanzhou, Qualifications Simples W-WITF-CHN-04B | 04/21 03:55 | 54 | Sijia Wei v Nagi Hanatani | 2-6,6-2,4-6 |
Wei Sijia (born 3 December 2003) is a Chinese tennis player. She has a career-high singles ranking by the WTA of world No. 183, achieved on 15 April 2024 and a doubles ranking of No. 257, attained on the 4 December 2023.