Polona Hercog defeated Julia Glushko 6-3 6-1 in the Cincinnati qualifying round 2 on hard.
Hercog P. took it in straight sets.
Hercog P. and Glushko J. faced 4 of the same opponents in the last 12 months. Hercog P. went 1–5 (17%) against them, Glushko J. 1–3 (25%). Only 2 of the comparisons are context-comparable — too few for a conclusion.
Only 4 common opponents — small sample, treat as indicative.
Polona Hercog beat Julia Glushko 6-3 6-1. Umpiry, "Polona Hercog vs Julia Glushko — Cincinnati Qualifying Round 2", https://umpiry.com/match/2014-08-11/glushko-vs-hercog-cincinnati-q2?utm_source=cite (as of 11 August 2014).