Rina Saigo defeated Sayaka Ishii 6-4 6-3 in the W100 Gifu q16 on hard. Rina Saigo extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2026-07-31 | W35 Aldershot | QF | hard | Rina Saigo | 6-3 6-0 |
| 2025-04-09 | W35 Osaka 1 | R32 | hard | Sayaka Ishii | 6-0 7-5 |
Averages over each player's completed matches in the selected window (32 vs 22). 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