We use many different sources for our data gathering, here is an inexhaustive list:
We use understat mainly for xG, xA and xPTS models. They provide accurate xData for the five biggest European football leagues.
We use squawka for their excellent player-comparison interface. They provide accurate data in relation to many different aspects of play.
We use whoscored for their match stats and heatmaps. They provide accurate data in relation to basic stats and individual player match input.
We use twelve.football for their individual player analysis algorithm in assessing match actions.
Any graphics, diagrams etc. that aren’t created by (or owned by) The Tactical Times will be properly credited to their creator.