Sonay Kartal faces Kimberly Birrell in the Japan Open - Osaka round of 32 on hard. Sonay Kartal holds the paper edge — leading the head-to-head 3–1, a roughly 80-point hard Elo advantage. Recent hard form is closely matched.
Kartal S. and Birrell K. faced 5 of the same opponents in the last 12 months. Kartal S. went 2–3 (40%) against them, Birrell K. 1–4 (20%). Results against comparable opponents are close (1 : 0 better-results split).
Hard: Kartal S. leads 2–0 · Clay: Kartal S. leads 1–0 · Grass: Birrell K. leads 1–0
Umpiry, "Sonay Kartal vs Kimberly Birrell — Japan Open - Osaka Round of 32", https://umpiry.com/match/2026-10-20/birrell-vs-kartal-japan-open-osaka-r32?utm_source=cite (as of 20 October 2026).