Squad age profiles: Championship, 10 Apr 2020
These graphics are intended to give a quick visual overview of the age of players that each club has fielded in league matches using a technique very similar to “population pyramid” graphs, although I’ll freely admit that they’ve come out with shades of the Rorschach test (or as someone observed on Twitter, the Habitat lighting range).
Hopefully they’re fairly self-explanatory, but here’s a quick summary anyway:
For each club I’ve added up all the league minutes played by every player this season and calculated the percentage accumulated by players of every age, rolling up “18 and under” and “35 and over” for neatness’ sake.
Each vertical “step” on a club’s chart is a year, with the major age milestones denoted by slightly thicker lines (as per the labels on the left). The width of the coloured graph at each step corresponds to the percentage of minutes accounted for by players of that age.
I haven’t labelled the percentage values as the graphs were already getting pretty busy and I figured that the general shape and proportions were sufficient to compare teams against each other. I may revisit this (and a few other tweaks) later in the season once I’ve done a bit more tinkering.
I’ve also calculated the average age of each club’s starting line-ups this season and used this to sort all the clubs in a division from oldest to youngest.
Hopefully that’s enough to give you the idea, so let’s dive in.
Cardiff have been putting out the oldest squads – comfortably north of 28 on average, which is half a year older than anyone else’s and over half a decade older than the youngest club Barnsley. The Tykes are the only team in the division not to call upon anybody in their thirties this season and 98% of their minutes have gone to players aged 27 and under.
Along with Cardiff, both Preston and Sheffield Wednesday have barely given any time to youngsters: less than 1% to players aged 21 or under.
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