Katie Volynets vs Kimberly Birrell — Osaka Qualifying Round 2

Osaka · CHALLENGER · Qualifying Round 2
Katie Volynets
USA
Katie Volynets
#89WTA
1786ELO
1736Hard ELO
24 yrs · 170 cm · Right-handed
Last 10 · pre-match
LLWWLWWWWL
2 — 0
Sets
Monday, 13 October 2025 ·
hard
Kimberly Birrell
AUS
Kimberly Birrell
#69WTA
1754ELO
1752Hard ELO
28 yrs · 170 cm · Right-handed
Last 10 · pre-match
LLLLWLWWWL
Volynets K.
6-4 6-3
Birrell K.
Volynets K.
662
Birrell K.
430

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 #69. Katie Volynets extended the head-to-head to 2–0.

Key context

Head to head

1–0
DateTournamentRoundSurfaceWinnerScore
2026-06-14NottinghamFgrassKatie Volynets2-6 6-4

Statistics

This season
Volynets K.Birrell K.
1st serve in·Clear edge
78%
63%
1st serve points won·Slight edge
59%
66%
2nd serve points won·Even
46%
45%
Service points won·Even
56%
58%
Return points won·Even
48%
44%
Break points saved·Even
56%
55%
Aces / match·Slight edge
1.2
2.4
Double faults / match·Dominant
1.1
5.7

Averages over each player's completed matches in the selected window (117 vs 118). ATP, WTA & Challenger.

Clutch

Under pressure
Volynets K.Birrell K.
Clutch Rating·Clear edge
14
37
Break points saved·Even
10
11
Break points won·Clear edge
94
77
Deciding sets·Dominant
7
78
Tiebreaks·Even
17
14

Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About

Freshness

Recent load
Volynets K.Birrell K.
Freshness·Slight edge
90
95

Volynets K.: 6 days rest · 1 match, 28 games (7d) · Birrell K.: 6 days rest · 1 match, 16 games (7d). Higher means fresher. About

Conditions

Court speed
Fastbig serves, short points
SlowFast

Draw