Katie Volynets defeated Kimberly Birrell 6-4 6-3 in the Osaka qualifying round 2 on hard. The upset overturned the form book — Kimberly Birrell came in ranked #65, but Katie Volynets had arrived on a 4-match winning run. Katie Volynets extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2026-06-14 | Nottingham | F | grass | Katie Volynets | 2-6 6-4 7.7-6.3 |
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
Averages over each player's completed matches in the selected window (92 vs 88). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
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.
Volynets K.: 2 days rest · 5 matches, 105 games (7d) · Birrell K.: 12 days rest · 2 matches (14d). Higher means fresher. About