Vera Dushevina defeated Eva Birnerova 6-1 6-0 in the Antwerp qualifying round of 32 on hard.
Dushevina V. took it in straight sets.
Dushevina V. and Birnerova E. faced 3 of the same opponents in the last 12 months. Dushevina V. went 1–3 (25%) against them, Birnerova E. 1–2 (33%). Only 2 of the comparisons are context-comparable — too few for a conclusion.
Only 3 common opponents — small sample, treat as indicative.
Vera Dushevina beat Eva Birnerova 6-1 6-0. Umpiry, "Vera Dushevina vs Eva Birnerova — Antwerp Qualifying Round of 32", https://umpiry.com/match/2007-02-10/birnerova-vs-dushevina-antwerp-q32?utm_source=cite (as of 10 February 2007).