Seiko Okamoto defeated Tian Tian Sun 6-4 3-6 6-2 in the Tokyo qualifying round of 32 on hard. The upset overturned the form book — Tian Tian Sun came in leading the head-to-head 1–0. Seiko Okamoto claimed a first win over Tian Tian Sun in two meetings, narrowing the head-to-head to 1–1.
Okamoto S. came through in three sets.