Yuta Kawahashi defeated Hikaru Shiraishi 7-5 1-6 10-7 in the M15 Karuizawa 1 quarter-final on clay. The upset overturned the form book — Hikaru Shiraishi came in ranked #488, leading the head-to-head 2–0. Yuta Kawahashi claimed a first win over Hikaru Shiraishi in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2025-04-02 | M15 Kashiwa 1 | R32 | hard | Hikaru Shiraishi | 3-6 6-4 6-1 |
| 2025-03-14 | M15 Hinode 1 | QF | hard | Hikaru Shiraishi | 6-0 2-6 6-1 |
Averages over each player's completed matches in the selected window (5 vs 39). 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