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 S Attwell →•View All Referees for Sheffield Weds →

🧑‍⚖️ Referee Analysis⚠️ BIAS DETECTED

S AttwellvsSheffield Weds

Analysis based on 11 matches since 2000

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

Wins

Draws

Losses

When S Attwell officiates Sheffield Weds matches, the statistics reveal a notable negative pattern. Based on 11 matches spanning multiple seasons, our comprehensive analysis shows Sheffield Weds achieves a 27.3% win rate under S Attwell, compared to the 45% baseline expected for teams at this level. This negative 17.7 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.

⚠️POTENTIAL BIAS

⚠️ POTENTIAL BIAS DETECTED

This team performs notably worse under this referee compared to their overall average.

Bias Score

-17.7%

Matches Analyzed

⚠️

Notable Negative Pattern

With a bias score of -17.7%, this ranks among the more significant negative patterns in our database. Over 11 matches, Sheffield Weds has won 18 percentage points fewer games than expected. For bettors and fantasy managers, this historical trend suggests extra caution when S Attwell is appointed.

The Bias Meter™

Bias Level-17.7%

Bias AgainstNeutralFavorable

Match History

11 matches under this referee

Date	Opponent	Score	Result	Cards	Division
11 Aug 2018	Hull(H)	1 - 1	DRAW	🟨 3	Championship
19 Aug 2017	Fulham(A)	1 - 0	WIN	—	Championship
8 Apr 2017	Newcastle(H)	2 - 1	WIN	🟨 2	Championship
20 Jan 2017	Brighton(A)	1 - 2	LOSS	🟨 2🟥 2	Championship
19 Mar 2016	Charlton(H)	3 - 0	WIN	🟨 2	Championship
10 Feb 2015	Ipswich(A)	1 - 2	LOSS	🟨 1	Championship
13 Dec 2014	Wolves(H)	0 - 1	LOSS	🟨 2	Championship
25 Oct 2014	Norwich(H)	0 - 0	DRAW	🟨 4	Championship
18 Jan 2014	Burnley(A)	1 - 1	DRAW	🟨 4	Championship
24 Aug 2013	Millwall(H)	2 - 2	DRAW	🟨 1	Championship
26 Dec 2009	Newcastle(H)	2 - 2	DRAW	🟨 2	Championship

Frequently Asked Questions

Detailed Statistics

Win Rate (Under Ref)27.3%

Baseline Win Rate45%

Bias Score-17.7%

Cards for Sheffield Weds

🟨 Yellows / Game2.09

🟥 Reds / Game0.18

Cards for Opponents

🟨 Opp Yellows / Game1.27

🟥 Opp Reds / Game0.09

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Betting Outlook

TIPSTER INSIGHT

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RED CARD RISK

Red card frequency: 0.18 per game

Higher than average dismissal rate in this matchup.

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

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