Polona Hercog defeated Christina Mchale 7-6 6-1 in the Wuhan qualifying round of 32 on hard. The upset overturned the form book — Christina Mchale came in leading the head-to-head 3–0, defending last year's round of 32. Polona Hercog claimed a first win over Christina Mchale in four meetings, narrowing the head-to-head to 3–1.
Hercog P. took it in straight sets.
Hercog P. and Mchale C. faced 2 of the same opponents in the last 12 months. Hercog P. went 1–1 (50%) against them, Mchale C. 1–1 (50%).
Only 2 common opponents — too few for any conclusion. Shown without assessment.
Polona Hercog beat Christina Mchale 7-6(2) 6-1. Umpiry, "Polona Hercog vs Christina Mchale — Wuhan Qualifying Round of 32", https://umpiry.com/match/2018-09-21/hercog-vs-mchale-wuhan-q32?utm_source=cite (as of 21 September 2018).