Player research cockpit

StefanKostic

TennisJack analysis

Stefan Kostic currently has a early TennisJack sample of 15 completed matches, with a 0.0% win rate in the loaded match history. The recent form line is 0-10 across the latest 10 completed matches.

Latest rank -

Matches15Completed matches

Win rate0.0%Across all matches

Latest form0-10In latest 10 matches

Index statusNeeds enrichmentProfile confidence

Performance metrics

Hold Base61.6%

Break Pressure8.9%

Latest form (10 matches)

0-10

L L L L L L L L L L

Surface profile

Hardcourt outdoor

Canonical/players/stefan-kostic/

Index statusNeeds enrichment

Last updatedData from TennisJack

Profile intelligence

Ten signals worth watching.

Built from 15 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.

Slow starter

Set 1 punch6.7%

Service shield61.6%

Return bite8.9%

Decider risk6.7%

Favorite / Underdog Split

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

Favorite 0.0% 0-3 - 3 matches Avg odds 1.53 | 1+ set 0.0%

Underdog 0.0% 0-7 - 7 matches Avg odds 8.45 | 1+ set 14.3%

First Set Personality

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

Set 1 win6.7%

Breaks first S113.3%

Broken first S186.7%

Recovers S10.0%

Break Pressure Profile

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

Avg breaks0.33

Avg broken1.40

Balance-1.07

Clean service matches60.0%

3+ breaks produced6.7%

Set 2 win0.0%

Clean Win / Comeback Index

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

-Clean 2-0 share among wins

Clean 2-0 wins0

Comeback signals0

Lost set 1, won match0

Comeback index0.0%

Surface Edge

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

Primary surfaceHardcourt outdoor

Primary record0-7

Primary WR0.0%

Best surfaceHardcourt outdoor 0.0%

Hardcourt outdoor0-70.0%

Clay0-40.0%

Grass0-20.0%

Unknown0-20.0%

Odds Value Pulse

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

Avg win odds-

Avg loss odds6.37

Biggest win odds-

2.00+ odds WR0.0%

2.00+ sample7

Odds sample10

Decider Profile

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

Three-set share6.7%

Decider record0-1

Set 3 win0.0%

After losing S10.0%

Close Set Risk

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

Close sets0-11

Close-set WR0.0%

Tie-breaks0-1

Matches with tight set10

Momentum Trend

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

Stable form · 15 losses running

L L L L L L L L L L

Latest 5 WR0.0%

Previous 10 WR0.0%

Latest 50-5

Previous 100-10

Trend delta+0.0%

Latest 5 WR0.0%

Match log

All Stefan Kostic 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
25.08.2026	Stefan Kostic vs Marko NikolicM15 Kursumlijska Banja	3-6 4-6Surface pending	Loss	Hold 77.8% Break 0.0%
12.08.2026	Stefan Kostic vs Aleksandar TolevM25 Kursumlijska Banja	1-6 3-6Surface pending	Loss	Hold 37.5% Break 12.5%
07.07.2026	Stefan Kostic vs Alessandro BellifemineM15 Kursumlijska Banja	1-6 6-7Clay	Loss	Hold 77.8% Break 0.0%
24.03.2026	Stefan Kostic vs Adrian ArconM15 Swan Hill	4-6 3-6Grass	Loss	Hold 60.0% Break 11.1%
18.03.2026	Stefan Kostic vs Benjamin O'ConnellM15 Wodonga	4-6 4-6Grass	Loss	Hold 50.0% Break 30.0%
02.03.2026	Stefan Kostic vs Duje MarkovinaM25 Launceston	4-6 2-6Hardcourt outdoor	Loss	Hold 66.7% Break 0.0%
23.02.2026	Stefan Kostic vs Jamie MackenzieM25 Burnie	2-6 2-6Hardcourt outdoor	Loss	Hold - Break -
16.12.2025	Stefan Kostic vs Jera StaleyUTR Pro Craigieburn	6-3 1-6 4-6Hardcourt outdoor	Loss	Hold - Break -
14.12.2025	Stefan Kostic vs Aryan KarnaniUTR Pro Craigieburn	4-6 3-6Hardcourt outdoor	Loss	Hold - Break -
13.12.2025Final	Stefan Kostic vs Casey AmblerUTR Pro Craigieburn	1-6 0-6Hardcourt outdoor	Loss	Hold - Break -
11.12.2025	Stefan Kostic vs Omar JasikaUTR Pro Craigieburn	4-6 2-6Hardcourt outdoor	Loss	Hold - Break -
08.12.2025	Stefan Kostic vs Marcus NieldUTR Pro Craigieburn	1-6 4-6Hardcourt outdoor	Loss	Hold - Break -
10.09.2025	Stefan Kostic vs Juan Bautista OteguiITF M15 Kursumlijska Banja	3-6 1-6Clay	Loss	Hold - Break -
19.08.2025	Stefan Kostic vs Filiberto FumagalliITF M15 Pirot	0-6 4-6Clay	Loss	Hold - Break -
18.06.2025	Stefan Kostic vs Piet Luis PinterM15 Kursumlijska Banja	2-6 1-6Clay	Loss	Hold - Break -