

Karolina Muchova defeated Elena Rybakina 6-2 2-6 6-4 in the Brisbane quarter-final on hard. The upset overturned the form book — Elena Rybakina came in ranked #2, leading the head-to-head 2–1. Karolina Muchova narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2026-04-13 | Stuttgart | F | clay | Elena Rybakina | 7-5 6-1 |
| 2023-03-06 | Indian Wells | QF | hard | Elena Rybakina | 7-6 2-6 6-4 |
| 2019-08-26 | US Open | R128 | hard | Karolina Muchova | 6-4 6-4 |
Averages over each player's completed matches in the selected window (41 vs 42). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Rybakina E.: 2 days rest · 4 matches, 87 games (7d). 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