Ai Sugiyama defeated Aravane Rezai 6-3 6-2 in the Zurich qualifying round of 16 on hard. The upset overturned the form book — Aravane Rezai came in leading the head-to-head 1–0. Ai Sugiyama claimed a first win over Aravane Rezai in two meetings, levelling the head-to-head at 1–1.
Sugiyama A. took it in straight sets.
Sugiyama A. and Rezai A. faced 3 of the same opponents in the last 12 months. Sugiyama A. went 2–3 (40%) against them, Rezai A. 0–3 (0%). Sugiyama A. came out better against 2 of 3 comparable opponents, Rezai A. against 0 — though 1 of those edges carries caveats (retirement).
Only 3 common opponents — small sample, treat as indicative.
Hard: Sugiyama A. leads 1–0 · Clay: Rezai A. leads 1–0
Ai Sugiyama beat Aravane Rezai 6-3 6-2. Umpiry, "Ai Sugiyama vs Aravane Rezai — Zurich Qualifying Round of 16", https://umpiry.com/match/2008-10-12/rezai-vs-sugiyama-zurich-q16?utm_source=cite (as of 12 October 2008).