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Sonay Kartal vs Kimberly Birrell — Japan Open - Osaka Round of 32

Japan Open - OsakaR32HardTue 20 Oct · 10:00
Win probabilityWho is more likely to winClear favourite · Kartal S.
74%26%

Clear edge for Kartal S. across form, surface and matchup. Upsets at this level happen in about 1 in 4 such matches.

Umpiry ScoreMatchup strength, 0–10 · not a probability
Kartal S.7.0/10
Strong advantage
Birrell K.5.9/10
Even match
Why
Surface+81 Hard Elo edgeSupports Kartal S.
Overall ratingOverall Elo 1874Supports Kartal S.
Recent runLost last 2Informative
Head-to-headLeads 2–0 on hardSupports Kartal S.
Long matches1 three-setter in 14 daysAgainst the prediction · Birrell K.
ELO1 985
Hard ELO1 849
Last 107–3
Age24
Height163 cm
PlaysRight
EarningsCareer $2.0M2026 $326K
ELO1 835
Hard ELO1 743
Last 107–3
Age28
Height170 cm
PlaysRight
EarningsCareer $3.2M2026 $1.1M

Sonay Kartal faces Kimberly Birrell in the Japan Open - Osaka round of 32 on hard. Sonay Kartal holds the paper edge — leading the head-to-head 3–1, a roughly 80-point hard Elo advantage. Recent hard form is closely matched.

Key context

Common opponents

5 shared · last 12 months
All 5 opponents →

Kartal S. and Birrell K. faced 5 of the same opponents in the last 12 months. Kartal S. went 2–3 (40%) against them, Birrell K. 1–4 (20%). Results against comparable opponents are close (1 : 0 better-results split).

2–340%Kartal S. · better vs 1Record vs common opponents1–420%Birrell K. · better vs 0
Vs common opponents · derived from scorelines
6–7Sets3–8
66–57Games40–57
0–2Tiebreaks1–0
1–2Deciding sets0–1
Show 2 more ▾Show less ▴

Head-to-head

4 meetings · Kartal S. leads 3–1
Full H2H →
31

Hard: Kartal S. leads 2–0 · Clay: Kartal S. leads 1–0 · Grass: Birrell K. leads 1–0

Evidence

Kartal S.Birrell K.
FormLast 10 matches each · 2026
Win–loss7–37–3
Season win rate67% (18–9) (ahead)54% (30–26)
RatingUmpiry ELO
Overall ELO1985 (ahead)1835
Hard-court ELO1849 (ahead)1743
Serve vs returnLast 26 vs 53 matches
1st-serve points won66% (ahead)64%
Return points won45% (ahead)44%
Aces / match2.2 (ahead)1.9
ClutchLast 26 vs 53 matches
Break points saved53%53%

Draw

Odds

Conditions

10:00 local
SurfaceHard
Forecast22°C · Rain
Wind3 km/h
Humidity97%

Freshness

Last 7 & 14 days
Kartal S.Birrell K.
1Days since last match5 — fresher
5Matches · 7 days1 — fresher
105Games · 7 days35 — fresher
6Matches · 14 days1 — fresher
122Games · 14 days35 — fresher
Green marks the fresher player.

Cite this

Umpiry, "Sonay Kartal vs Kimberly Birrell — Japan Open - Osaka Round of 32", https://umpiry.com/match/2026-10-20/birrell-vs-kartal-japan-open-osaka-r32?utm_source=cite (as of 20 October 2026).