Player research cockpit

BarbaraKostecka

TennisJack analysis

Barbara Kostecka currently has a early TennisJack sample of 12 completed matches, with a 66.7% win rate in the loaded match history. The recent form line is 6-4 across the latest 10 completed matches.

Latest rank #1037

Matches12Completed matches

Win rate66.7%Across all matches

Latest form6-4In latest 10 matches

Index statusNeeds enrichmentProfile confidence

Performance metrics

Hold Base56.8%

Break Pressure56.9%

Latest form (10 matches)

6-4

W W W L W L W L W L

Surface profile

Hardcourt outdoor

Canonical/players/barbara-kostecka/

Index statusNeeds enrichment

Last updatedData from TennisJack

Profile intelligence

Ten signals worth watching.

Built from 12 completed TennisJack matches: form, surface, odds, pressure and close-set behavior. The full match log stays below for audit.

Player DNA

Quick fingerprint from starts, service base, return bite and decider exposure.

Balanced starts Break-heavy player Close-set risk

Set 1 punch50.0%

Service shield56.8%

Return bite56.9%

Decider risk41.7%

Favorite / Underdog Split

How the player behaves when priced as market favorite versus outsider.

Favorite 50.0% 1-1 - 2 matches Avg odds 1.56 | 1+ set 100.0%

Underdog 75.0% 6-2 - 8 matches Avg odds 3.32 | 1+ set 75.0%

First Set Personality

Shows whether the player starts cleanly, breaks first, or survives early pressure.

Set 1 win50.0%

Breaks first S150.0%

Broken first S150.0%

Recovers S150.0%

Break Pressure Profile

Return damage versus service leakage, built from set-level break counters.

Avg breaks6.17

Avg broken5.00

Balance1.17

Clean service matches8.3%

3+ breaks produced91.7%

Set 2 win75.0%

Clean Win / Comeback Index

Separates smooth 2-0 wins from matches where the player had to repair damage.

25.0%Clean 2-0 share among wins

Clean 2-0 wins2

Comeback signals9

Lost set 1, won match2

Comeback index75.0%

Surface Edge

Where the profile is most trustworthy and where the win rate really travels.

Primary surfaceHardcourt outdoor

Primary record7-2

Primary WR77.8%

Best surfaceHardcourt outdoor 77.8%

Hardcourt outdoor7-277.8%

Clay1-150.0%

Hardcourt indoor0-10.0%

Odds Value Pulse

Shows whether the player wins as expected or creates value at outsider prices.

Avg win odds2.46

Avg loss odds4.16

Biggest win odds3.40

2.00+ odds WR75.0%

2.00+ sample8

Odds sample10

Decider Profile

How often matches become complicated, and whether the player survives the third set.

Three-set share41.7%

Decider record3-2

Set 3 win60.0%

After losing S133.3%

Close Set Risk

Tie-break and 7-5 / 7-6 pressure profile, useful for spotting fragile edges.

Close sets8-6

Close-set WR57.1%

Tie-breaks1-0

Matches with tight set7

Momentum Trend

Compares the latest 5 matches with the previous 10 so form shifts are visible immediately.

Cooling down · 1 losses running

W W W L W L W L W L

Latest 5 WR40.0%

Previous 10 WR85.7%

Latest 52-3

Previous 106-1

Trend delta-45.7%

Latest 5 WR40.0%

Match log

All Barbara Kostecka matches in the TennisJack sample.

Scan date, tournament, surface, opponent, set score, result and service-return indicators before opening the deeper tools.

Open Player Research

Date	Match	Score	Result	Hold / Break
18.06.2026	Barbara Kostecka vs Julie PastikovaW35 Bolszewo	4-6 7-6 4-6Clay	Loss	Hold 50.0% Break 35.3%
17.06.2026	Barbara Kostecka vs Emilija TverijonaiteW35 Bolszewo	6-3 6-0Clay	Win	Hold 62.5% Break 100.0%
26.02.2026	Barbara Kostecka vs Emma SlavikovaW15 Manacor	2-6 7-5 5-7Hardcourt outdoor	Loss	Hold 31.2% Break 56.2%
25.02.2026	Barbara Kostecka vs Alize LimW15 Manacor	6-3 6-2Hardcourt outdoor	Win	Hold 100.0% Break 44.4%
19.02.2026	Barbara Kostecka vs Aran Teixido GarciaW15 Manacor	2-6 5-7Hardcourt outdoor	Loss	Hold 44.4% Break 30.0%
18.02.2026	Barbara Kostecka vs Valentina LoscialeW15 Manacor	6-2 6-2Hardcourt outdoor	Win	Hold 62.5% Break 87.5%
21.01.2026	Barbara Kostecka vs Elizara YanevaW75 Leszno	1-6 2-6Hardcourt indoor	Loss	Hold 28.6% Break 12.5%
13.07.2025	Barbara Kostecka vs Ania HertelITF W15 Grodzisk Mazowiecki	5-7 7-5 6-4Hardcourt outdoor	Win	Hold 64.7% Break 41.2%
12.07.2025	Barbara Kostecka vs Karla BartelITF W15 Grodzisk Mazowiecki	1-6 6-4 6-1Hardcourt outdoor	Win	Hold 58.3% Break 50.0%
11.07.2025	Barbara Kostecka vs Merel HoedtITF W15 Grodzisk Mazowiecki	6-1 6-2Hardcourt outdoor	Win	Hold 57.1% Break 100.0%
11.07.2025	Barbara Kostecka vs Emma SlavikovaITF W15 Grodzisk Mazowiecki	7-5 4-6 7-5Hardcourt outdoor	Win	Hold 47.1% Break 58.8%
10.07.2025	Barbara Kostecka vs Aleksandra Julia ZuchanskaITF W15 Grodzisk Mazowiecki	6-4 6-1Hardcourt outdoor	Win	Hold 75.0% Break 66.7%