Alison Riske defeated Qiang Wang 6-2 6-1 in the Wuhan round of 16 on hard. The upset overturned the form book — Qiang Wang came in defending last year's semi-final, but Alison Riske had been the form player, winning 2 of their last 7 on hard.
Riske A. took it in straight sets.
Riske A. and Wang Q. faced 9 of the same opponents in the last 12 months. Riske A. went 3–6 (33%) against them, Wang Q. 6–4 (60%). Wang Q. came out better against 4 of 9 comparable opponents, Riske A. against 1.
Alison Riske beat Qiang Wang 6-2 6-1. Umpiry, "Alison Riske vs Qiang Wang — Wuhan Round of 16", https://umpiry.com/match/2019-09-25/riske-vs-wang-wuhan-r16?utm_source=cite (as of 25 September 2019).