Elena Vesnina defeated Laura Siegemund 7-5 6-4 in the Charleston quarter-final on clay.
Vesnina E. took it in straight sets.
Vesnina E. and Siegemund L. faced 3 of the same opponents in the last 12 months. Vesnina E. went 2–2 (50%) against them, Siegemund L. 3–0 (100%). Only 2 of the comparisons are context-comparable — too few for a conclusion.
Only 3 common opponents — small sample, treat as indicative.
Elena Vesnina beat Laura Siegemund 7-5 6-4. Umpiry, "Elena Vesnina vs Laura Siegemund — Charleston Quarter-final", https://umpiry.com/match/2016-04-08/siegemund-vs-vesnina-charleston-qf?utm_source=cite (as of 8 April 2016).