What is the Bias Score and how is it calculated?

The Bias Score compares a team's win rate under a specific referee to their baseline win rate (45%). A negative score suggests the team performs worse than average under that referee.

What sample size is considered reliable?

We recommend at least 5 games for initial patterns and 10+ games for high confidence.

← Back to Home•View All Teams for J Simpson →•View All Referees for Bolton →

🧑‍⚖️ Referee Analysis⚠️ BIAS DETECTED

J SimpsonvsBolton

Analysis based on 9 matches since 2000

* Note: Detailed card statistics for matches before 2005 may be incomplete.

Wins

Draws

Losses

When J Simpson officiates Bolton matches, the statistics reveal a severe negative pattern. Based on 9 matches spanning multiple seasons, our comprehensive analysis shows Bolton achieves a 22.2% win rate under J Simpson, compared to the 45% baseline expected for teams at this level. This negative 22.8 percentage point difference suggests a meaningful pattern worth examining. The data includes detailed card statistics, match outcomes, and historical trends to provide football fans, bettors, and analysts with evidence-based insights into this referee-team dynamic.

🚨STRONG BIAS DETECTED

🚨 STRONG BIAS DETECTED

This referee has a significantly negative history with this team. Win rate is severely below average.

Bias Score

-22.8%

Matches Analyzed

⚠️

Notable Negative Pattern

With a bias score of -22.8%, this ranks among the more significant negative patterns in our database. Over 9 matches, Bolton has won 23 percentage points fewer games than expected. For bettors and fantasy managers, this historical trend suggests extra caution when J Simpson is appointed.

The Bias Meter™

Bias Level-22.8%

Bias AgainstNeutralFavorable

Match History

9 matches under this referee

Date	Opponent	Score	Result	Cards	Division
10 Feb 2024	Northampton(A)	1 - 1	DRAW	🟨 3🟥 1	League One
21 Jan 2023	Derby(A)	1 - 2	LOSS	🟨 1	League One
26 Dec 2018	Rotherham(H)	2 - 1	WIN	🟨 1	Championship
2 Oct 2018	Stoke(A)	0 - 2	LOSS	🟨 2	Championship
26 Dec 2017	Middlesbrough(A)	0 - 2	LOSS	🟨 3	Championship
30 Sept 2017	Aston Villa(A)	0 - 1	LOSS	🟨 3	Championship
28 Feb 2017	Bristol Rvs(H)	1 - 1	DRAW	🟨 2🟥 1	League One
20 Feb 2016	QPR(H)	1 - 1	DRAW	—	Championship
5 Apr 2014	Huddersfield(A)	1 - 0	WIN	🟨 1	Championship

Frequently Asked Questions

Detailed Statistics

Win Rate (Under Ref)22.2%

Baseline Win Rate45%

Bias Score-22.8%

Cards for Bolton

🟨 Yellows / Game1.78

🟥 Reds / Game0.22

Cards for Opponents

🟨 Opp Yellows / Game1.11

🟥 Opp Reds / Game0.11

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Betting Outlook

TIPSTER INSIGHT

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RED CARD RISK

Red card frequency: 0.22 per game

Higher than average dismissal rate in this matchup.

⚠️ This is statistical analysis, not betting advice. Gamble responsibly.

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