Wei Sijia (born 3 December 2003) is a Chinese tennis player.
She has a career-high WTA singles ranking of world No. 119, achieved on 6 January 2025 and a doubles ranking of No. 257, attained on the 17 July 2023.[1]
After not playing on the ITF World Tennis Tour in 2021, Wei began 2022 competing in qualifying draws at the $15k level. With steadily improving results, she won her first final at the end of June. This led to a total of 16 titles (ten in doubles), and her WTA ranking climbed from 1054 at the end of 2020 to 434 a year later.[2] All 16 titles were won in Monastir.
In 2022, her first full year on the ITF Women's Tour, Wei won more matches than any other player with 64 main-draw wins. Her total of ten doubles titles was also equal to the most for any player.[3]
Wei won her first ITF Circuit title above the $15k-level at the 2022 Open Feu Aziz Zouhir, in the doubles draw, partnering Priska Madelyn Nugroho. It was the fourth title win for the two partners.
She qualified for the main draw of the 2024 Thailand Open 2 but lost to compatriot and fellow qualifier Gao Xinyu in the first round.[6] Ranked No. 140, she received a wildcard for the main draw of the WTA 1000 2024 China Open making her debut at this WTA level and defeated qualifier Elena-Gabriela Ruse for her first WTA Tour win.[7][8] She lost in the second round to 13th seed Beatriz Haddad Maia.[9] Wei was given a wildcard entry into the 2024 Guangzhou Open and defeated sixth seed Rebecca Šramková in the first round to record her first win over a top-100 ranked opponent.[10][11] In the second round, she lost to Wang Xiyu in three sets.[12]