Simona Halep defeated Galina Voskoboeva 6-4 6-1 in the Nuremberg quarter-final on clay.
Halep S. took it in straight sets.
Halep S. and Voskoboeva G. faced 4 of the same opponents in the last 12 months. Halep S. went 3–2 (60%) against them, Voskoboeva G. 1–3 (25%). Halep S. came out better against 2 of 4 comparable opponents, Voskoboeva G. against 0 — though 1 of those edges carries caveats (lower-tier event).
Only 4 common opponents — small sample, treat as indicative.
Simona Halep beat Galina Voskoboeva 6-4 6-1. Umpiry, "Simona Halep vs Galina Voskoboeva — Nuremberg Quarter-final", https://umpiry.com/match/2013-06-10/halep-vs-voskoboeva-nuremberg-qf?utm_source=cite (as of 10 June 2013).