Aryna Sabalenka defeated Andrea Petkovic 6-2 6-1 in the GER vs BLR round robin on hard.
Sabalenka A. took it in straight sets.
Sabalenka A. and Petkovic A. faced 10 of the same opponents in the last 12 months. Sabalenka A. went 9–4 (69%) against them, Petkovic A. 5–5 (50%). Sabalenka A. came out better against 3 of 10 comparable opponents, Petkovic A. against 1.
Aryna Sabalenka beat Andrea Petkovic 6-2 6-1. Umpiry, "Aryna Sabalenka vs Andrea Petkovic — GER vs BLR Round Robin", https://umpiry.com/match/2019-02-09/petkovic-vs-sabalenka-ger-vs-blr-rr?utm_source=cite (as of 9 February 2019).