Football Analytics

Frenkie de Jong on song

An analysis on rising star Frenkie de Jong, that was originally posted on the OptaPro blog.

Sal Nils
6 min read

Improving my ‘xG added’ model

A write-up of a research paper I did for university, mostly around an improvement to the xG added model I introduced earlier.

Sal Nils
6 min read

How accurate are xG models II: the ‘Big Chance’ Dilemma

A test of how good our xG models are and reflections on the usage of the 'Big Chance' variable.

Sal Nils
6 min read

What is the best location to pass from?

Some positions yield higher xG added values on average than others. How does this influence the xG added score for players?

Sal Nils
6 min read

Measuring dribbling skill

Improving the ‘xG added’ model by including dribbles (not only takeons) into the ball progression types. Who is the best dribbler in the Premier League?

Sal Nils
6 min read

What is a possession-based model (and why does it matter)?

Improving the ‘xG added’ model to a possession-based model, and explanation of what this changes and why it’s better.

Sal Nils
6 min read

These are the best passers at EURO 2016

Using the recently created metric ‘xG added’ to try and find the best passers at EURO 2016.

Sal Nils
6 min read

Measuring passing skill

Introducing a new metric called ‘xG added’, which tries to quantify the value a player adds to a team through his passing.

Sal Nils
6 min read

Biases in our xG models

Third and final blog in a series on evaluating xG models. In this part I focus on testing whether existing xG models have certain biases.

Sal Nils
6 min read

How good are our xG models?

Second in a series of three on evaluating xG models. In this part I introduce my way of evaluating a model and apply it to models currently out there.

Sal Nils
6 min read

How NOT to evaluate your xG model

First in a series of three on evaluating xG models. In this part I focus on why the most used method of evaluating an xG model is wrong.

Sal Nils
6 min read

Introducing my Expected Goals model

My first blog on football analytics, in which I introduce my own Expected Goals model, its methodology and shortly evaluate its performance.

Sal Nils
6 min read

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