Shuko Aoyama defeated Riko Sawayanagi 2-6 6-3 6-0 in the Hamamatsu 25K qualifying round on grass. The upset overturned the form book — Riko Sawayanagi came in leading the head-to-head 1–0. Shuko Aoyama claimed a first win over Riko Sawayanagi in two meetings, levelling the head-to-head at 1–1.
Aoyama S. came through in three sets.
Grass: Aoyama S. leads 1–0 · Carpet: Sawayanagi R. leads 1–0
Shuko Aoyama beat Riko Sawayanagi 2-6 6-3 6-0. Umpiry, "Shuko Aoyama vs Riko Sawayanagi — Hamamatsu 25K Qualifying Round", https://umpiry.com/match/2012-10-22/aoyama-vs-sawayanagi-hamamatsu-25k-qf?utm_source=cite (as of 22 October 2012).