Belinda Bencic defeated Andrea Petkovic 6-3 6-4 in the GER vs SUI round robin on hard.
Bencic B. took it in straight sets.
Bencic B. and Petkovic A. faced 19 of the same opponents in the last 12 months. Bencic B. went 15–6 (71%) against them, Petkovic A. 10–13 (43%). Bencic B. came out better against 7 of 18 comparable opponents, Petkovic A. against 2 — though 2 of those edges carry caveats (lower-tier event, retirement).
Belinda Bencic beat Andrea Petkovic 6-3 6-4. Umpiry, "Belinda Bencic vs Andrea Petkovic — GER vs SUI Round Robin", https://umpiry.com/match/2016-02-06/bencic-vs-petkovic-ger-vs-sui-rr?utm_source=cite (as of 6 February 2016).