Ayumi Oka defeated Kasumi Aiko 6-1 6-0 in the Sutama 10K round of 16 on clay. The result followed the form book — Ayumi Oka came in leading the head-to-head 1–0. Ayumi Oka extended the head-to-head to 2–0.
Oka A. took it in straight sets.
Clay: Oka A. leads 1–0 · Carpet: Oka A. leads 1–0
Ayumi Oka beat Kasumi Aiko 6-1 6-0. Umpiry, "Ayumi Oka vs Kasumi Aiko — Sutama 10K Round of 16", https://umpiry.com/match/2008-06-16/aiko-vs-oka-sutama-10k-r16?utm_source=cite (as of 16 June 2008).