Seiko Okamoto defeated Mari Tanaka 6-2 6-3 in the Hamanako 25K round of 16 on carpet. The result followed the form book — Seiko Okamoto came in leading the head-to-head 2–0. Seiko Okamoto extended the head-to-head to 3–0.
Okamoto S. took it in straight sets.
Carpet: Okamoto S. leads 2–0 · Hard: Okamoto S. leads 1–0
Seiko Okamoto beat Mari Tanaka 6-2 6-3. Umpiry, "Seiko Okamoto vs Mari Tanaka — Hamanako 25K Round of 16", https://umpiry.com/match/2007-10-22/okamoto-vs-tanaka-hamanako-25k-r16?utm_source=cite (as of 22 October 2007).