Serena Williams defeated Victoria Azarenka 6-4 6-4 in the Istanbul round robin on clay. The result followed the form book — Serena Williams came in leading the head-to-head 10–1. Serena Williams extended the head-to-head to 11–1.
Williams S. took it in straight sets.
Williams S. and Azarenka V. faced 11 of the same opponents in the last 12 months. Williams S. went 13–1 (93%) against them, Azarenka V. 21–1 (95%). Results against comparable opponents are close (1 : 1 better-results split).
Clay: Williams S. leads 2–0 · Hard: Williams S. leads 7–1 · Grass: Williams S. leads 2–0
Serena Williams beat Victoria Azarenka 6-4 6-4. Umpiry, "Serena Williams vs Victoria Azarenka — Istanbul Round Robin", https://umpiry.com/match/2012-10-25/azarenka-vs-williams-istanbul-rr?utm_source=cite (as of 25 October 2012).