Kimberly Birrell vs Dayeon Back — Seoul Round of 16

Seoul · WTA · Round of 16
Kimberly Birrell
AUS
Kimberly Birrell
#65WTA
1754ELO
1752Hard ELO
28 yrs · 170 cm · Right-handed
Last 10 · pre-match
LWLWWWLLWL
2 — 0
Sets
Monday, 9 October 2023
hard
KOR
Dayeon Back
#260WTA
24 yrs
Last 10 · pre-match
WWWWWWWWWW
Birrell K.
6-0 6-1
Back D.
Birrell K.
662
Back D.
010

Kimberly Birrell defeated Dayeon Back 6-0 6-1 in the Seoul round of 16 on hard. The result followed the form book — Kimberly Birrell came in ranked #65, defending last year's round of 16.

Key context

Head to head

No previous meetings on record.

Serve vs return

This season
Birrell K.serving60% hold

wins 54% of points on serve vs Back D.

Back D.serving69% hold

wins 58% of points on serve vs Birrell 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

Birrell K.Back D.
22
Serve
—
43
Return
—

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

Statistics

This season
Birrell K.Back D.
1st serve in·Even
62%
66%
1st serve points won·Even
65%
62%
2nd serve points won·Even
45%
44%
Service points won·Even
57%
56%
Return points won·Slight edge
44%
49%
Break points saved·Even
55%
52%
Aces / match·Clear edge
2.5
0.9
Double faults / match·Dominant
5.0
2.5

Averages over each player's completed matches in the selected window (174 vs 98). ATP, WTA & Challenger.

Clutch

Under pressure
Birrell K.Back D.
Clutch Rating·Clear edge
65
52
Break points saved·Dominant
77
19
Break points won·Slight edge
83
91
Deciding sets·Dominant
65
93
Tiebreaks·
77
—

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

Umpiry Score

Pre-match
Birrell K.
4.2
Heavy underdogUmpiry ScorePartial · surface data limited
  • Extended break: 63 days (−1.2)
Back D.
4.3
Heavy underdogUmpiry ScorePartial · surface data limited
  • Extended break: 178 days (−1.5)
Form & Matchup
5.0No prior meetings
H2H
5.0
3.6
Surface form
0.0Lost last 2
Win streak
Context
6.0
Defending pts
6.0

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
Birrell K.Back D.
Freshness·
96
—

Birrell K.: 12 days rest · 2 matches (14d). Higher means fresher. About

Conditions

Court speed
Mediumbalanced pace
SlowFast

Draw

Final
Pegula J.[1]
Yuan Y.
6-26-3
Semi-finals
Pegula J.[1]
Wickmayer Y.
6-46-3
Yuan Y.
Bektas E.
6-736-46-2
Quarter-finals
Yuan Y.
Bouzkova M.[4]
7-57-67
Wickmayer Y.
Kudermetova P.
6-36-1
Bektas E.
Birrell K.
4-66-36-2
Pegula J.[1]
Liu C.
4-66-36-0
R16
Yuan Y.
Juvan K.
6-44-1
Liu C.
Rus A.[7]
1-66-33-0
Bouzkova M.[4]
Lys E.
6-1
Bektas E.
Jang S.
6-36-4
Pegula J.[1]
Krueger A.
6-36-1
Birrell K.
Back D.
6-06-1
Kudermetova P.
Von Deichmann K.
6-36-1
Wickmayer Y.
Alexandrova E.[3]
6-37-66
R32
Von Deichmann K.
Khromacheva I.
5-76-43-0
Bektas E.
Pigossi L.
6-756-47-5
Birrell K.
Vickery S.
6-46-4
Kudermetova P.
Parks A.[6]
3-66-16-0
Krueger A.
Podoroska N.
6-26-4
Wickmayer Y.
Liang E.
6-36-4
Lys E.
Schmiedlova A.
6-26-4
Pegula J.[1]
Hruncakova V.
6-26-4
Liu C.
Ku Y.
6-36-3
Rus A.[7]
Han N.
6-16-3
Yuan Y.
Hartono A.
6-16-2
Bouzkova M.[4]
Day K.
6-46-4
Alexandrova E.[3]
Hontama M.
6-36-1
Back D.
Ostapenko J.[2]
3-66-17-64
Juvan K.
Boulter K.[8]
6-46-4
Jang S.
Kenin S.[5]
6-16-4