The Penalty Blog

Insights, research, and analysis on football analytics

Understanding Elo Ratings Part Two

Understanding Elo Ratings Part Two

Now that we understand the theory behind Elo ratings, let’s take a look at how to calculate them and how to make them more relevant to football...

Read more
Understanding Elo Ratings

Understanding Elo Ratings

The Elo rating system was originally devised by its creator Arphad Elo as a way to calculate the average skill levels of two chess players. Although the system was created specifically for chess it has also been adapted to many other games and sports, including international f...

Read more
Predicting Football Matches Using Shot Data Part Two

Predicting Football Matches Using Shot Data Part Two

Having found that the correlation between goals scored and shots on target was the strongest of the various shooting variables I had available to me, I decided to see how well they could predict the outcome of a football match....

Read more
What Has Caused Dimitar Berbatov’s Recent Lack of Goals?

What Has Caused Dimitar Berbatov’s Recent Lack of Goals?

Up until week 12 of the season, Dimitar Berbatov was one of the English Premier League’s top goal scorers and goal creators. However, since then he has gone 450 minutes without registering either a goal or an assist, coinciding with Bryan Ruiz’s injury...

Read more
Using the Pythagorean Expectation Across Leagues Wordwide

Using the Pythagorean Expectation Across Leagues Wordwide

The next stage for my Pythagorean's development is to testing whether it can be applied to leagues outside the EPL. Having one Pythagorean equation that could be used globally is preferable to having to create specific equations for each league.

Read more