Lin Zhu defeated Na Lae Han 6-0 6-4 in the Tianjin quarter-final on hard. The upset overturned the form book — Na Lae Han came in leading the head-to-head 2–1. That levelled the head-to-head at 2–2.
Zhu L. took it in straight sets.
Lin Zhu beat Na Lae Han 6-0 6-4. Umpiry, "Lin Zhu vs Na Lae Han — Tianjin Quarter-final", https://umpiry.com/match/2017-07-21/han-vs-zhu-tianjin-qf?utm_source=cite (as of 21 July 2017).