Himari Sato defeated Karen Tsutsumi 7-6 6-3 in the W15 Kashiwa 1 q16 on hard. The upset overturned the form book — Karen Tsutsumi came in leading the head-to-head 1–0. Himari Sato claimed a first win over Karen Tsutsumi in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2025-06-02 | W15 Osaka 1 | Q32 | hard | Karen Tsutsumi | 6-2 6-4 |
Averages over each player's completed matches in the selected window (18 vs 2). 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