Player research cockpit

WilliamJansen

TennisJack analysis

William Jansen currently has a useful TennisJack sample of 29 completed matches, with a 55.2% win rate in the loaded match history. The recent form line is 6-4 across the latest 10 completed matches.

Latest rank #1402

Matches29Completed matches

Win rate55.2%Across all matches

Latest form6-4In latest 10 matches

Index statusReview candidateProfile confidence

Performance metrics

Hold Base85.1%

Break Pressure22.6%

Latest form (10 matches)

6-4

L W L W W W L W L W

Surface profile

Unknown

Canonical/players/william-jansen/

Index statusReview candidate

Last updatedData from TennisJack

Profile intelligence

Ten signals worth watching.

Built from 29 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 Stable server

Set 1 punch44.8%

Service shield85.1%

Return bite22.6%

Decider risk31.0%

Favorite / Underdog Split

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

Favorite 63.6% 7-4 - 11 matches Avg odds 1.33 | 1+ set 81.8%

Underdog 40.0% 2-3 - 5 matches Avg odds 2.82 | 1+ set 40.0%

First Set Personality

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

Set 1 win44.8%

Breaks first S144.4%

Broken first S155.6%

Recovers S120.0%

Break Pressure Profile

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

Avg breaks2.45

Avg broken1.76

Balance0.69

Clean service matches27.6%

3+ breaks produced58.6%

Set 2 win69.0%

Clean Win / Comeback Index

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

62.5%Clean 2-0 share among wins

Clean 2-0 wins10

Comeback signals17

Lost set 1, won match4

Comeback index58.6%

Surface Edge

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

Primary surfaceUnknown

Primary record6-4

Primary WR60.0%

Best surfaceSynthetic outdoor 66.7%

Unknown6-460.0%

Hardcourt indoor4-357.1%

Grass2-340.0%

Hardcourt outdoor2-250.0%

Odds Value Pulse

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

Avg win odds1.40

Avg loss odds2.31

Biggest win odds2.38

2.00+ odds WR25.0%

2.00+ sample4

Odds sample16

Decider Profile

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

Three-set share31.0%

Decider record4-5

Set 3 win44.4%

After losing S125.0%

Close Set Risk

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

Close sets18-17

Close-set WR51.4%

Tie-breaks5-7

Matches with tight set26

Momentum Trend

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

Stable form · 1 wins running

L W L W W W L W L W

Latest 5 WR60.0%

Previous 10 WR50.0%

Latest 53-2

Previous 105-5

Trend delta+10.0%

Latest 5 WR60.0%

Match log

All William Jansen 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
23.09.2026	William Jansen vs Seydina AndreM15 Columbia	6-2 7-6Surface pending	Win	Hold 100.0% Break 18.2%
30.07.2026	William Jansen vs Billy BlaydesM25 Aldershot	3-6 7-5 4-6Surface pending	Loss	Hold 73.3% Break 18.8%
29.07.2026	William Jansen vs Louis BowdenM25 Aldershot	6-3 6-4Surface pending	Win	Hold 90.0% Break 33.3%
25.07.2026	William Jansen vs Naoya HondaM25 Champaign	6-7 6-7Surface pending	Loss	Hold 100.0% Break 0.0%
24.07.2026	William Jansen vs Karim BennaniM25 Champaign	3-6 7-5 6-3Surface pending	Win	Hold 80.0% Break 26.7%
23.07.2026	William Jansen vs Ilyas Milad FahimM25 Champaign	3-6 7-5 6-0Surface pending	Win	Hold 92.3% Break 28.6%
22.07.2026	William Jansen vs Keaton HanceM25 Champaign	6-2 6-2Surface pending	Win	Hold 87.5% Break 62.5%
16.07.2026	William Jansen vs Alexander FrusinaM25 Louisville	6-7 4-6Surface pending	Loss	Hold 81.8% Break 8.3%
15.07.2026	William Jansen vs Joshua PeckM25 Louisville	6-4 6-3Surface pending	Win	Hold 100.0% Break 30.0%
07.07.2026R32	William Jansen vs Felix GillChallenger Nottingham	4-6 7-6 4-6Grass	Loss	Hold 81.2% Break 5.9%
06.07.2026Round 19	William Jansen vs Theo PapamalamisChallenger Nottingham	6-7 6-4 6-4Grass	Win	Hold 81.2% Break 29.4%
05.07.2026Round 14	William Jansen vs Sam Ryan ZiegannChallenger Nottingham	6-1 6-2Grass	Win	Hold 100.0% Break 62.5%
23.06.2026	William Jansen vs Dev JaviaM15 Kayseri	2-6 7-5 2-6Surface pending	Loss	Hold 64.3% Break 14.3%
13.06.2026Round 45	William Jansen vs Remy BertolaChallenger Nottingham	5-7 6-2 6-7Grass	Loss	Hold 87.5% Break 17.6%
31.05.2026Round 14	William Jansen vs Clement ChidekhChallenger Birmingham	1-6 4-6Grass	Loss	Hold 62.5% Break 0.0%
10.01.2026SF	William Jansen vs Sachin PaltaUTR Pro Athens	4-6 2-6Hardcourt indoor	Loss	Hold 66.7% Break 0.0%
06.01.2026	William Jansen vs Jordan ChangUTR Pro Athens	7-6 6-2Hardcourt indoor	Win	Hold 90.0% Break 27.3%
05.01.2026	William Jansen vs Liam KilmerUTR Pro Athens	6-1 7-5Hardcourt indoor	Win	Hold 90.0% Break 44.4%
04.01.2026	William Jansen vs Cyrus AhmadUTR Pro Athens	7-6 6-1Hardcourt indoor	Win	Hold 100.0% Break 20.0%
13.11.2025	William Jansen vs Aidan KimITF M25 Columbus	3-6 4-6Hardcourt indoor	Loss	Hold 77.8% Break 0.0%
12.11.2025	William Jansen vs Ilija PalavestraITF M25 Columbus	6-4 5-2Hardcourt indoor	Win	Hold 100.0% Break 33.3%
01.08.2025	William Jansen vs James StoryITF M15 Dublin	6-7 3-6Synthetic outdoor	Loss	Hold 72.7% Break 9.1%
31.07.2025	William Jansen vs Daniel De JongeITF M15 Dublin	6-1 6-4Synthetic outdoor	Win	Hold 100.0% Break 37.5%
28.07.2025	William Jansen vs Joe TylerITF M15 Dublin	7-5 6-1Synthetic outdoor	Win	Hold 88.9% Break 50.0%
07.07.2025Round 14	William Jansen vs Patrick ZahrajChallenger Nottingham	4-6 2-6Hardcourt indoor	Loss	Hold 66.7% Break 0.0%
04.06.2025	William Jansen vs Daniel De JongeM15 Kayseri	6-4 2-6 4-6Hardcourt outdoor	Loss	Hold 64.3% Break 21.4%
31.05.2025	William Jansen vs Arda AzkaraM15 Kayseri	3-6 6-7Hardcourt outdoor	Loss	Hold 90.0% Break 0.0%
30.05.2025	William Jansen vs Patrick BradyITF M15 Kayseri	6-2 6-3Hardcourt outdoor	Win	Hold 100.0% Break 37.5%
28.05.2025	William Jansen vs Piotr PawlakM15 Kayseri	2-6 7-6 6-2Hardcourt outdoor	Win	Hold 78.6% Break 20.0%