Shiho Hisamatsu defeated Amber Liu 6-4 6-0 in the Tsukuba 25K round of 32 on hard. The upset overturned the form book — Amber Liu came in leading the head-to-head 1–0, but Shiho Hisamatsu had been the form player, winning 4 of their last 8 on hard. Shiho Hisamatsu claimed a first win over Amber Liu in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2007-07-02 | Nagoya 25K | R16 | hard | Amber Liu | 7-5 0-6 6-0 |
Averages over each player's completed matches in the selected window (3 vs 3). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. Small sample — read as indicative. About