J. Vrba vs Oliver Okonkwo — M15 Champaign Semi-final
CZE
Vrba J.
J. Vrba faces Oliver Okonkwo in the M15 Champaign semi-final on hard. Oliver Okonkwo is the paper favourite — ranked #975 — but J. Vrba arrives in form, winning all 5 of their last hard matches to Oliver Okonkwo's 3.
Win Probability
Pre-match · updated 12:50 UTC50–58%
58–67%
67–80%
80%+
Toss-up · Too close to call
Calibrated model (out-of-sample validated). Probability is a statistical estimate, not a certainty. How it works.
Key context
- Last match: J. Vrba recovered from a 0–6 opening set to beat Ofek Shimanov.
- Surface form: J. Vrba 5 of 5, Oliver Okonkwo 3 of 5 on hard recently — J. Vrba the sharper of late.
- Fatigue load: J. Vrba carries the heavier recent load — 2 three-setters to 0 in the past fortnight.
Common opponents
Last 12 monthsUmpiry Score
Pre-match- Back-to-back day (−0.5)
The Umpiry Score combines match-context factors — matchup, form, fatigue, travel and motivation — into a single 0–10 score, updated daily. Read how it works.
Statistics
This seasonAverages over each player's completed matches in the selected window (4 vs 1). ATP, WTA & Challenger.
Serve vs return
This seasonwins 63% of points on serve vs Okonkwo O.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. Small sample — read as indicative. About
Conditions
Head to head
No previous meetings on record.