Zhibek Kulambayeva defeated Sijia Wei 7-5 3-6 6-3 in the Changsha 125 round of 32 on clay. The upset overturned the form book — Sijia Wei came in ranked #421, leading the head-to-head 1–0. Zhibek Kulambayeva claimed a first win over Sijia Wei in two meetings, levelling the head-to-head at 1–1.
Kulambayeva Z. came through in three sets.
Clay: Kulambayeva Z. leads 1–0 · Hard: Wei S. leads 1–0
Zhibek Kulambayeva beat Sijia Wei 7-5 3-6 6-3. Umpiry, "Zhibek Kulambayeva vs Sijia Wei — Changsha 125 Round of 32", https://umpiry.com/match/2025-09-01/kulambayeva-vs-wei-changsha-125-r32?utm_source=cite (as of 1 September 2025).