Kyoka Okamura vs Kimberly BirrellSuzhou 125 Round of 32

Suzhou 125 · CHALLENGER · Round of 32
#256WTA
1435ELO
1388Hard ELO
30 yrs · Right-handed
Last 10 · pre-match
LLLLWWWWLW
0 — 0
Sets
Monday, 29 September 2025
hard
#65WTA
1754ELO
1752Hard ELO
28 yrs · 170 cm · Right-handed
Last 10 · pre-match
LWLWWWLLWL
Okamura K.
6-2 6-4
Birrell K.
Okamura K.
662
Birrell K.
24

Kyoka Okamura defeated Kimberly Birrell 6-2 6-4 in the Suzhou 125 round of 32 on hard. The upset overturned the form book — Kimberly Birrell came in ranked #65.

Key context

Head to head

No previous meetings on record.

Serve vs return

This season
Okamura K.serving54% hold

wins 52% of points on serve vs Birrell K.

Birrell K.serving59% hold

wins 54% of points on serve vs Okamura K.

Baseline battle — serve is shaky, expect plenty of breaks

Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About

Serve & return on hard

Okamura K.Birrell K.
Serve
22
Return
43

Per-surface Serve / Return Rating (0–100, percentile within the hard field, opponent-adjusted over 52 weeks). About

Statistics

This season
1st serve in·Even
66%
62%
1st serve points won·Even
62%
65%
2nd serve points won·Even
44%
44%
Service points won·Even
56%
57%
Return points won·Even
43%
44%
Break points saved·Even
50%
54%
Aces / match·Even
2.1
2.3
Double faults / match·Dominant
3.1
5.8

Averages over each player's completed matches in the selected window (72 vs 88). ATP, WTA & Challenger.

Clutch

Under pressure
Clutch Rating·Dominant
12
65
Break points saved·Dominant
15
77
Break points won·Clear edge
68
83
Deciding sets·Dominant
40
65
Tiebreaks·
77

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

Umpiry Score

Pre-match
5.0
Heavy underdogUmpiry Score
6.8
Slight advantageUmpiry Score
Form & Matchup
0.8Hard Elo 1388
Surface ELO
9.2+364 Hard Elo edge
1.1Overall Elo 1435
ELO gap
8.9Overall Elo 1754
5.0No prior meetings
H2H
5.0
5.1
Surface form
3.3
Win streak
0.0Lost last 3
Fatigue & Travel
Minutes 14d
8.9
4.0
3-set count
Prev. match
8.0
Context
5.0
Defending pts
5.0

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.

Freshness

Recent load
Freshness·Slight edge
90
96

Okamura K.: 1 day rest · 1 match, 15 games (7d) · Birrell K.: 12 days rest · 2 matches (14d). Higher means fresher. About

Conditions

Court speed
Fastbig serves, short points
SlowFast