Serena Williams defeated Jelena Dokic 7-6 6-0 in the WTA Championships quarter-final on hard. The result followed the form book — Serena Williams came in leading the head-to-head 2–0. Serena Williams extended the head-to-head to 3–0.
Williams S. took it in straight sets.
Williams S. and Dokic J. faced 16 of the same opponents in the last 12 months. Williams S. went 22–2 (92%) against them, Dokic J. 12–11 (52%). Williams S. came out better against 9 of 16 comparable opponents, Dokic J. against 2 — though 1 of those edges carries caveats (retirement).
Serena Williams beat Jelena Dokic 7-6(1) 6-0. Umpiry, "Serena Williams vs Jelena Dokic — WTA Championships Quarter-final", https://umpiry.com/match/2002-11-04/dokic-vs-williams-wta-championships-qf?utm_source=cite (as of 4 November 2002).