

Elena Rybakina defeated Daria Kasatkina 5-7 7-5 7-6 in the Montreal quarter-final on hard. The result followed the form book — Elena Rybakina came in ranked #2, leading the head-to-head 3–2. Elena Rybakina extended the head-to-head to 4–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2026-08-05 | Toronto | R64 | hard | Elena Rybakina | 3-6 7-5 4-6 |
| 2024-02-05 | Abu Dhabi | F | hard | Elena Rybakina | 6-1 6-4 |
| 2022-08-01 | San Jose | R32 | hard | Daria Kasatkina | 1-6 6-2 6-0 |
| 2021-01-06 | Abu Dhabi | R16 | hard | Elena Rybakina | 6-3 6-4 |
| 2020-10-19 | Ostrava | R32 | hard | Daria Kasatkina | 6-2 3-6 6-3 |
Averages over each player's completed matches in the selected window (200 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Rybakina E.: 3 days rest · 4 matches, 67 games (7d) · Kasatkina D.: 10 days rest · 1 match (14d). Higher means fresher. About
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Per-surface Serve / Return Rating (0–100, percentile within the hard field, opponent-adjusted over 52 weeks). About