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 P Armstrong →•View All Referees for Leyton Orient →

🧑‍⚖️ Referee Analysis⚠️ BIAS DETECTED

P ArmstrongvsLeyton Orient

Analysis based on 7 matches since 2000

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

Wins

Draws

Losses

When P Armstrong officiates Leyton Orient matches, the statistics reveal a notable negative pattern. Based on 7 matches spanning multiple seasons, our comprehensive analysis shows Leyton Orient achieves a 28.6% win rate under P Armstrong, compared to the 45% baseline expected for teams at this level. This negative 16.4 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

-16.4%

Matches Analyzed

⚠️

Notable Negative Pattern

With a bias score of -16.4%, this ranks among the more significant negative patterns in our database. Over 7 matches, Leyton Orient has won 16 percentage points fewer games than expected. For bettors and fantasy managers, this historical trend suggests extra caution when P Armstrong is appointed.

The Bias Meter™

Bias Level-16.4%

Bias AgainstNeutralFavorable

Match History

7 matches under this referee

Date	Opponent	Score	Result	Cards	Division
19 Jan 2008	Luton(H)	2 - 1	WIN	—	League One
26 Dec 2006	Gillingham(A)	1 - 2	LOSS	🟨 2🟥 1	League One
22 Feb 2005	Lincoln(H)	1 - 1	DRAW	—	League Two
20 Mar 2004	Lincoln(H)	0 - 2	LOSS	🟨 4	League Two
11 Oct 2003	Swansea(H)	1 - 2	LOSS	🟨 1	League Two
21 Dec 2002	Swansea(A)	1 - 0	WIN	🟨 4🟥 1	League Two
21 Sept 2002	Exeter(A)	0 - 1	LOSS	🟨 2🟥 1	League Two

Frequently Asked Questions

Detailed Statistics

Win Rate (Under Ref)28.6%

Baseline Win Rate45%

Bias Score-16.4%

Cards for Leyton Orient

🟨 Yellows / Game1.86

🟥 Reds / Game0.43

Cards for Opponents

🟨 Opp Yellows / Game1.71

🟥 Opp Reds / Game0.00

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Betting Outlook

TIPSTER INSIGHT

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RED CARD RISK

Red card frequency: 0.43 per game

Higher than average dismissal rate in this matchup.

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

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