Andrea Petkovic defeated Annika Beck 4-6 6-3 7-5 in the Nuremberg quarter-final on clay.
Petkovic A. came through in three sets.
Petkovic A. and Beck A. faced 3 of the same opponents in the last 12 months. Petkovic A. went 2–1 (67%) against them, Beck A. 3–0 (100%). Results against comparable opponents are close (0 : 1 better-results split).
Only 3 common opponents — small sample, treat as indicative.