Honoka Kobayashi defeated Ayumi Miyamoto 7-6 3-6 6-2 in the W15 Sapporo 2 round of 32 on hard. The upset overturned the form book — Ayumi Miyamoto came in ranked #746, leading the head-to-head 2–0. Honoka Kobayashi claimed a first win over Ayumi Miyamoto in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2025-06-28 | W15 Sapporo 2 | SF | hard | Ayumi Miyamoto | 6-0 6-3 |
| 2024-07-24 | W15 Sapporo 1 | R32 | hard | Ayumi Miyamoto | 6-4 4-6 6-4 |
Averages over each player's completed matches in the selected window (41 vs 45). 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. About