Yan Bai defeated Cheng Yu Yu 6-4 6-1 in the M25 Luzhou 1 quarter-final on hard. The result followed the form book — Yan Bai came in leading the head-to-head 4–0. Yan Bai extended the head-to-head to 5–0.
Bai Y. took it in straight sets.
Yan Bai beat Cheng Yu Yu 6-4 6-1. Umpiry, "Yan Bai vs Cheng Yu Yu — M25 Luzhou 1 Quarter-final", https://umpiry.com/match/2019-05-31/bai-vs-yu-m25-luzhou-1-qf?utm_source=cite (as of 31 May 2019).