Montinee Tangphong defeated Shiho Hisamatsu 7-6 6-4 in the Tsukuba 25K round of 32 on hard. The upset overturned the form book — Shiho Hisamatsu came in leading the head-to-head 1–0. Montinee Tangphong claimed a first win over Shiho Hisamatsu in two meetings, narrowing the head-to-head to 1–1.
Tangphong M. took it in straight sets.
Hard: Tangphong M. leads 1–0 · Carpet: Hisamatsu S. leads 1–0