Yan Bai defeated Cheng Yu Yu 6-2 6-2 in the Hong Kong F6 semi-final on hard. The result followed the form book — Yan Bai came in leading the head-to-head 3–0. Yan Bai extended the head-to-head to 4–0.
Bai Y. took it in straight sets.
Yan Bai beat Cheng Yu Yu 6-2 6-2. Umpiry, "Yan Bai vs Cheng Yu Yu — Hong Kong F6 Semi-final", https://umpiry.com/match/2017-01-02/bai-vs-yu-hong-kong-f6-sf?utm_source=cite (as of 2 January 2017).