Post-Shot Data and Goalkeeper Rankings

A few weeks ago Paul Riley (aka @footballfactman) put out a tweet which showed goalkeeper rankings in the EPL. Shall we have one using an half-decent sample size? — Paul Riley (@footballfactman) January 7, 2022 The xG model Paul used to determine the goalkeeper rankings was based on [...]

By |January 22nd, 2020|Categories: Football Analytics, On the Pitch, Recent Posts|0 Comments

Charts for Tracking Data

This post illustrates some simple tracking data visualisations that highlight some interesting characteristics of player motion. To demonstrate I take some tracking data from a match played between Stoke and Liverpool in 2015. Stoke, the home team won this match 6-1.  Here's how the teams lined up (Stoke are [...]

By |November 13th, 2019|Categories: Football Analytics, On the Pitch|0 Comments

Learning to Love Plus-Minus

I have always been suspicious of Plus-Minus in football. Plus-minus is a statistical method for evaluating individual players in team games. It works by measuring the performance of a team when different combinations of individuals are on the pitch, and teasing out from that the contributions of each player.  [...]

By |July 4th, 2019|Categories: Football Analytics, On the Pitch, Recent Posts|2 Comments

Experiments on Clustering Possession Sequences (Part 1)

The fluidity of football is one of the main obstacles to analysis. Unlike baseball or cricket which are divided into discrete one-v-one plays, football plays consist of passing and dribbling sequences which may be long or short, cover the whole pitch or some small area of it, and involve [...]

By |April 16th, 2019|Categories: On the Pitch, Recent Posts|0 Comments