Sachie Ishizu defeated Natsumi Hamamura 6-4 2-6 6-3 in the Niigata 25K round of 16 on hard. Sachie Ishizu moved ahead in the head-to-head, 2–1.
Ishizu S. came through in three sets.
Hard: Ishizu S. leads 1–0 · Grass: Ishizu S. leads 1–0 · Carpet: Hamamura N. leads 1–0
Sachie Ishizu beat Natsumi Hamamura 6-4 2-6 6-3. Umpiry, "Sachie Ishizu vs Natsumi Hamamura — Niigata 25K Round of 16", https://umpiry.com/match/2011-05-23/hamamura-vs-ishizu-niigata-25k-r16?utm_source=cite (as of 23 May 2011).