Mana Ayukawa defeated Haruka Kaji 6-4 3-6 6-2 in the W60 Fukuoka round of 32 on carpet. The upset overturned the form book — Haruka Kaji came in leading the head-to-head 1–0. Mana Ayukawa claimed a first win over Haruka Kaji in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-12-14 | Hong Kong $10K | SF | hard | Haruka Kaji | 5-2 |
Averages over each player's completed matches in the selected window (2 vs 96). 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