Natsumi Kawaguchi defeated Lisa Marie Rioux 6-0 7-6 in the W15 Kashiwa round of 16 on hard. Natsumi Kawaguchi extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2025-08-25 | W35 Nakhon Pathom 2 | Q16 | hard | Lisa Marie Rioux | 3-6 6-2 10-8 |
| 2025-04-04 | W15 Kashiwa 1 | R16 | hard | Natsumi Kawaguchi | 6-0 7-6(4) |
Averages over each player's completed matches in the selected window (109 vs 36). 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