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August 2021

Ref Review 2012/13 : Norwich. It mostly balances.

By Walter Broeckx

This article is part of the series of the Referee Review 2013. You can find links to earlier articles on the bottom of this article.


Having dealt with the different teams and after having examined all the Premier League refs (leading to the best ref of the season according to the views of our referee reviewers) we now bring you an easy guide as to who is good or bad to have as a ref for each individual team.

We will of course bring you this in order so that from now on if you see that your team is playing and there is a certain ref assigned you can see in a blink of an eye if this ref has a bad or a good history with your team. At least in the season 2012/2013.  And if all goes well we will even try to add the bias from the season before in to each article. And that way you can see if there are any possible situations that return from one year to the next.

And we do this because it might well be that some referee performances are a one off. But if a ref has the same bias against a team it might show something more. For if a ref has a big bias in favour of a team it also is saying something about that ref.

A little word of explanation about the graphics below.  The ultimate referee performance would be that the bias score (which is based on the wrong decisions) of around zero. Alas you will find very few of those scores in the total series. So the zero line will be the middle line of each graphic.

If a ref has positive bias score for the team involved you will see a name (of the ref) and a green line and a number.   That is the bias number for that ref.

On the other hand if the ref had a negative bias you will once again see a name but then with a red line and a number. The negative bias score for that ref.

The longer the lines, the higher the number and the higher the bias that ref produces.  Short lines are better and would be nicer for us all, if only the world worked that way. I also included a little table in the graphic just with the names and with a red or green label. This is for any readers who want to have a quick look at the names as sometimes the numbers can get in the way.

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Next in our series is Norwich

Norwich bias per ref

We only had 8 refs in the Norwich games we could review last season. And if we look at how they are spread it seems that this was rather even. Four refs with a positive bias and 4 with a negative bias.

If we look at the refs with a negative bias we notice that Dowd and Halsey had a very small negative bias. As it should be for all refs in fact.

Clattenburg had a bigger negative bias and the bias from Foy is really disturbing.

If we look at the positive side of things from a Norwich point of view we see that they had 4 refs and all with a rather big positive bias. Oliver with the smallest but even then a very big bias score. The score from Taylor also is rather high.

But what to make of the score of Jones and Probert? That really is not how it should be.

Let us have a look at the season before and see if we can find some patterns.

EPL vs PGMOL - Incorrect calls Breakdown by Referee - NorwichCity (Weighted) 2011/2012

In that season we had 10 refs and again nice spread out: 5 positive and 5 negative.

Clattenburg had a small negative bias in that season and he also had a negative bias in last season. So not really a positive ref in general for Norwich.

Foy who had a negative bias last season had a positive the season before. So it might have been a coincidence.

The Ref who had a positive impact over two seasons was Oliver.

But we must have a special word about Taylor. In both seasons an amazingly big positive bias for both teams. This surely doesn’t seem very normal to me.

The bias team by team

2 comments to Ref Review 2012/13 : Norwich. It mostly balances.

  • andyy

    Are the wrong decisions weighted? Is a throw on the half way line worth the same as a penalty, for example?

    And how rigorous is it? Are all penalties given/not given assessed correctly? e.g.if Norwich had not been given the penalty at OT (which their 2nd in command thought was wrong) if the situations were reversed, how would that have counted?

  • WalterBroeckx

    There is a weight on the different decisions.
    A wrong throw is counted for 1, a not given penalty or a wrongly awarded is counted for 5.