Naomi Osaka vs Ekaterina Alexandrova — Bad Homburg Quarter-final
JPN
Osaka N.
Naomi Osaka faces Ekaterina Alexandrova in the Bad Homburg quarter-final on grass. Naomi Osaka holds the paper edge — ranked #15, defending last year's round of 16.
Win Probability
Pre-match · updated 14:21 UTC50–58%
58–67%
67–80%
80%+
Clear favourite · Osaka N. clearly ahead, but no certainty
Calibrated model · 65% favourite accuracy (2025–26, out-of-sample). Probability is a statistical estimate, not a certainty. How it works.
Key context
- Under pressure: In the tight moments, Naomi Osaka has rated higher under pressure (Clutch Rating 91 vs 66).
- Last match: Naomi Osaka dropped just 6 games past Elise Mertens.
- Stage: Naomi Osaka defends last year's round of 16; Ekaterina Alexandrova defends last year's quarter-final.
Umpiry Score
Pre-matchThe Umpiry Score combines match-context factors — matchup, form, fatigue, travel and motivation — into a single 0–10 score, updated daily. Read how it works.
Form trajectory
Direction of recent form — results vs Elo expectation blended with serve/return vs each player's baseline, over the last few months. About
Statistics
This seasonAverages over each player's completed matches in the selected window (7 vs 15). ATP, WTA & Challenger.
Serve vs return
This seasonEach player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Clutch
Under pressurePerformance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Freshness
Recent loadOsaka N.: 1 day rest · 2 matches, 35 games (7d) · Alexandrova E.: 1 day rest · 2 matches, 47 games (7d). Higher means fresher. About
Conditions
Head to head
No previous meetings on record.