Mana Ayukawa defeated Yuka Higuchi 6-2 6-1 in the Karuizawa 25K round of 32 on carpet. The upset overturned the form book — Yuka Higuchi came in leading the head-to-head 3–1. Mana Ayukawa narrowed the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-05-11 | Kurume $50K | Q32 | grass | Yuka Higuchi | 6-4 6-2 |
| 2015-04-27 | Gifu $75K | Q16 | hard | Mana Ayukawa | 7-5 6-4 |
| 2013-03-18 | Kofu 10K | R32 | hard | Yuka Higuchi | 7-5 6-3 |
| 2011-03-14 | Miyazaki 10K | R16 | carpet | Yuka Higuchi | 6-2 6-0 |
Averages over each player's completed matches in the selected window (144 vs 1). 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