Katie Volynets vs Kimberly Birrell | Kimberly Birrell Wins 2-6 6-2 7-5

UMPIRY

Korea Open - SeoulQuarter-finalHardFri 25 Sept · 12:00Final

Katie VolynetsWTA #74 · USA

Kimberly Birrell(2)WTA #41 · AUS

SetsGames1

625

267

Kimberly Birrell advanced to the Korea Open semifinals after Katie Volynets retired during their quarterfinal match. At the time of Volynets' retirement, Birrell led 2-6, 6-2, 4-2. Birrell served one ace and committed five double faults, while Volynets had no aces and one double fault.

Generated automatically from Umpiry match data.

Key context

Match story: Kimberly Birrell dropped the opening set before beating Katie Volynets 2–6 6–2 7–5.

How the match was decided

Auto-generated

Birrell K. came through in three sets, with seven breaks of serve.

Breaks of serveBirrell K. 7 · Volynets K. 6
1st-serve points wonBirrell K. 65% · Volynets K. 53%
AcesBirrell K. 1 · Volynets K. 1

Turning points

When the match moved

Set 20–1BreakBirrell K. · Broke, never broken back
Set 32–4Break backVolynets K. · Broke back
Set 34–4Break backVolynets K. · Broke back
Set 35–5Break backVolynets K. · Broke back
Set 35–6BreakBirrell K. · Broke, never broken back

Serve flowVolynets K. broken 7 times · Birrell K. broken 6 times.

Hold to love/15
Hold to 30
Hold to 40 / deuce
Broken
Result unknown

Volynets K.

7/14Birrell K.

8/14

Set 1Set 2Set 3

Match momentum

Whole matchVolynets K.Birrell K.

Late momentumBirrell K.23

6Last 12 points6

7Last 3 games10

6/10Break points7/15

Break of serve

Match statistics

Volynets K.Birrell K.

Serve

1Aces1
1Double faults6
53%1st serve points won65%
50% · 7/14Service games held57% · 8/14

Return

67%Break points won38%
6Breaks of serve7

Serve & return performance

Key performance gaps

Double faultsVolynets K. served 1 double fault, Birrell K. 6. Largest performance gap of the match.+5Volynets K.1Birrell K.6

First-serve pointsBirrell K. won 65% of points behind the first serve, Volynets K. 53%.+12 ptsVolynets K.1st-serve pts won53%Birrell K.1st-serve pts won65%

Common opponents

13 shared · last 12 months

Volynets K. and Birrell K. faced 13 of the same opponents in the last 12 months. Volynets K. went 8–6 (57%) against them, Birrell K. 8–6 (57%). Results against comparable opponents are close (3 : 3 better-results split).

8–657%Volynets K. · better vs 3Record vs common opponents8–657%Birrell K. · better vs 3

Vs common opponents · derived from scorelines

19–14Sets19–16

168–149Games158–146

2–0Tiebreaks0–2

2–4Deciding sets4–2

vs Li A.#30L6-4 5-7 2-6Hobart · hardL2-6 6-2 3-6Miami · hard
vs Bartunkova N.#34L4-6 5-7Austin · hardW1-6 6-1 6-3Chennai · hard
vs Vekic D.#40L3-6 6-3 4-6Linz · hardW6-4 6-0Chennai · hard

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vs Valentova T.#65L2-6 4-6Miami · hardW0-6 6-3 5-0Dubai · hard
vs Golubic V.#67W7-5 2-6 7-6(3)Memphis · hardL6-7(7) 4-6Toronto · hard
vs Korneeva A.#69W6-1 6-4Paris 125 · clayW6-3 0-6 6-2Wimbledon · grass
vs Rakhimova K.#76W6-3 6-0Korea Open - Seoul · hardL2-6 2-6Cincinnati · hard
vs Udvardy P.#79W7-5 6-2Nottingham · grassL4-6 6-1 1-6Madrid · clay
vs Maria T.#84W7-5 6-1Ostrava · hardW6-4 3-6 7-5Dubai · hard
vs Vidmanova D.#88L4-6 7-6(5) 1-6Memphis · hardL6-7(2) 3-6Monterrey · hard
vs Sramkova R.#152W6-1 0-0Indian Wells · hardW6-4 3-6 6-3Brisbane · hard
vs Dolehide C.#207W3-6 6-2 7-5Suzhou 125 · hardW6-4 6-2Austin · hard
vs Lamens S.#215W7-5 6-1Suzhou 125 · hardW6-1 6-2Wuhan · hard

Head-to-head

5 meetings · Birrell K. leads 3–2

Hard: Birrell K. leads 2–1 · Grass: level 1–1

Birrell K.September 2026Korea Open - SeoulThis matchHard6-2 2-6 5-7
Volynets K.June 2026NottinghamGrass2-6 6-4
Birrell K.February 2026DubaiHard6-3 6-1
Volynets K.October 2025OsakaHard6-4 6-3
Birrell K.June 2025EastbourneGrass7-5 7-5

Draw

Closing odds

Next up

vs Bondar A.View match

Player context

Before the match

Volynets K.Birrell K.1 866ELO1 8461 724Hard ELO1 7558–2Last 106–424Age28170 cmHeight170 cmRightPlaysRightCareer $3.1M2026 $566KEarningsCareer $3.2M2026 $1.0M

Match info

Started12:00 local

Cite this

Kimberly Birrell beat Katie Volynets 6-2 2-6 5-7. Umpiry, "Katie Volynets vs Kimberly Birrell — Korea Open - Seoul Quarter-final", https://umpiry.com/match/2026-09-25/birrell-vs-volynets-korea-open-seoul-qf?utm_source=cite (as of 25 September 2026).