M DeanvsPortsmouth
Analysis based on 20 matches since 2000
* Note: Detailed card statistics for matches before 2005 may be incomplete.
When M Dean officiates Portsmouth matches, the statistics reveal a severe negative pattern. Based on 20 matches spanning multiple seasons, our comprehensive analysis shows Portsmouth achieves a 25% win rate under M Dean, compared to the 45% baseline expected for teams at this level. This negative 20.0 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
This referee has a significantly negative history with this team. Win rate is severely below average.
Notable Negative Pattern
With a bias score of -20.0%, this ranks among the more significant negative patterns in our database. Over 20 matches, Portsmouth has won 20 percentage points fewer games than expected. For bettors and fantasy managers, this historical trend suggests extra caution when M Dean is appointed.
The Bias Meter™
Match History
20 matches under this referee
| Date | Opponent | Score | Result | Cards | Division |
|---|---|---|---|---|---|
| 10 Mar 2012 | Brighton(A) | 0 - 2 | LOSS | 🟨 2 | Championship |
| 14 Apr 2010 | Wigan(A) | 0 - 0 | DRAW | 🟨 1 | Premier League |
| 20 Feb 2010 | Stoke(H) | 1 - 2 | LOSS | 🟨 2 | Premier League |
| 28 Nov 2009 | Man United(H) | 1 - 4 | LOSS | 🟨 4 | Premier League |
| 11 Apr 2009 | West Brom(H) | 2 - 2 | DRAW | 🟨 3 | Premier League |
| 7 Dec 2008 | West Brom(A) | 1 - 1 | DRAW | 🟨 2 | Premier League |
| 28 Sept 2008 | Tottenham(H) | 2 - 0 | WIN | 🟨 4🟥 1 | Premier League |
| 17 Aug 2008 | Chelsea(A) | 0 - 4 | LOSS | 🟨 1 | Premier League |
| 19 Jan 2008 | Derby(H) | 3 - 1 | WIN | 🟨 1 | Premier League |
| 1 Jan 2008 | Reading(A) | 2 - 0 | WIN | 🟨 1 | Premier League |
| 27 Oct 2007 | West Ham(H) | 0 - 0 | DRAW | 🟨 2 | Premier League |
| 11 Aug 2007 | Derby(A) | 2 - 2 | DRAW | 🟨 2 | Premier League |
| 10 Feb 2007 | Man City(H) | 2 - 1 | WIN | 🟨 3 | Premier League |
| 4 Nov 2006 | Man United(A) | 0 - 3 | LOSS | 🟨 1 | Premier League |
| 22 Apr 2006 | Sunderland(H) | 2 - 1 | WIN | 🟨 2 | Premier League |
| 4 Mar 2006 | Aston Villa(A) | 0 - 1 | LOSS | 🟨 1 | Premier League |
| 2 Jan 2006 | Blackburn(A) | 1 - 2 | LOSS | 🟨 4 | Premier League |
| 29 Nov 2003 | Leicester(H) | 0 - 2 | LOSS | 🟨 5 | Premier League |
| 17 Jan 2002 | Wolves(H) | 2 - 3 | LOSS | 🟨 3 | Championship |
| 18 Aug 2001 | Bradford(H) | 0 - 1 | LOSS | 🟨 1 | Championship |
Frequently Asked Questions
Detailed Statistics
Cards for Portsmouth
Cards for Opponents
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