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William Jansen tennis player profile visual with TennisJack stats and match analysis
TJPlayer research cockpit

William Jansen

TennisJack analysis

William Jansen currently has a useful TennisJack sample of 20 completed matches, with a 50.0% win rate in the loaded match history. The recent form line is 5-5 across the latest 10 completed matches.

Latest rank #1402
M
Matches20Completed matches
%
Win rate50.0%Across all matches
F
Latest form5-5In latest 10 matches
Performance metrics
Hold Base83.1%
Break Pressure21.5%
Latest form (10 matches)
5-5
W Oldest W 2 W 3 L 4 L 5 L 6 L 7 W 8 W 9 L Latest
Surface profile
Hardcourt indoor 7 matches · 57.1% WR
Great Britain flag
CountryGreat BritainCountry profile
PlayLeftLeft-handed
Highest Rank#1023Singles career high
Age / Birthday21Born 6 Dec 2004
Profile intelligence

Ten signals worth watching.

Built from 20 completed TennisJack matches: form, surface, odds, pressure and close-set behavior. The full match log stays below for audit.

01

Player DNA

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

Balanced starts Break-heavy player Stable server
Set 1 punch45.0%
Service shield83.1%
Return bite21.5%
Decider risk30.0%
02

Favorite / Underdog Split

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

Favorite 66.7% 6-3 - 9 matches Avg odds 1.31 | 1+ set 77.8%
Underdog 28.6% 2-5 - 7 matches Avg odds 2.89 | 1+ set 42.9%
03

First Set Personality

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

Set 1 win45.0%
Breaks first S144.4%
Broken first S155.6%
Recovers S120.0%
04

Break Pressure Profile

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

Avg breaks2.30
Avg broken1.95
Balance0.35
Clean service matches25.0%
3+ breaks produced55.0%
Set 2 win65.0%
05

Clean Win / Comeback Index

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

70.0%Clean 2-0 share among wins
Clean 2-0 wins7
Comeback signals11
Lost set 1, won match2
Comeback index55.0%
06

Surface Edge

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

Primary surfaceHardcourt indoor
Primary record4-3
Primary WR57.1%
Best surfaceSynthetic outdoor 66.7%
Hardcourt indoor4-357.1%
Grass2-340.0%
Hardcourt outdoor2-340.0%
Synthetic outdoor2-166.7%
07

Odds Value Pulse

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

Avg win odds1.40
Avg loss odds2.60
Biggest win odds2.38
2.00+ odds WR16.7%
2.00+ sample6
Odds sample16
08

Decider Profile

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

Three-set share30.0%
Decider record2-4
Set 3 win33.3%
After losing S118.2%
09

Close Set Risk

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

Close sets12-12
Close-set WR50.0%
Tie-breaks4-4
Matches with tight set18
10

Momentum Trend

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

Cooling down · 1 losses running
W oldest W 2 W 3 L 4 L 5 L 6 L 7 W 8 W 9 L latest
Latest 5 2-3 40.0% WR
Trend delta -20.0% latest vs previous sample
Match log

All William Jansen matches in the TennisJack sample.

Scan date, tournament, surface, players, odds, final score, result and service-return indicators from completed matches.

Open Player Research
Loss
23.06.2026
M15 KayseriHardcourt outdoor
Dev Javia
vs
William Jansen
3.50
1.29
6-2 5-7 6-2
Hold
64.3%
Break
14.3%
Loss
13.11.2025
ITF M25 ColumbusHardcourt indoor
William Jansen
vs
Aidan Kim
3.50
1.29
3-6 4-6
Hold
77.8%
Break
0.0%
Win
28.07.2025
ITF M15 DublinSynthetic outdoor
William Jansen
vs
Joe Tyler
1.20
4.33
7-5 6-1
Hold
88.9%
Break
50.0%