Attack breakdowns: League 1, 29 Oct 2017

It feels like enough time has passed to update the club-by-club attack breakdowns. These are explained in detail here, but in summary they are simple scatter graphics that work as follows:


Each graphic shows a club’s main attacking players: those who have:

  1. Featured for at least a third of their total pitch minutes in the league this season, and
  2. Taken an average of at least one shot per game.

The size of each player’s bubble is proportional to the percentage of possible minutes that they’ve played.

Each player’s bubble is plotted on a chart with the two axes working like this:

  • On the horizontal axis we have their goal threat, based on the “expected goals” value of shots taken per 90 minutes. This is effectively a measure of the combined quality of their goalscoring chances.
  • On the vertical axis we have their scoring rate, using a less abstract measure of actual number of goals scored per 90 minutes.

Both axes exclude penalties, as those can massively skew a player’s contribution away from the threat they pose from open play.

There’s a shaded “stripe” which indicates the long-term shot conversion rate of all finishers except the top and bottom 10%, so we can identify those whose performance may be unsustainable (i.e. unlikely to be repeated next season). If a player is above the stripe, they’re converting chances at a rate consistent with someone in the top 10% of finishers, and likewise a player below the line is in the worst 10%. Based on what we know about the specific player, we can therefore take a view on whether we expect their scoring rate to continue.

Club-by-club graphics

While some sides are clearly entrusting goalscoring to a select few, Phil Brown is certainly sharing the load around at Southend. Ten different players in the Shrimpers’ first team have taken at least one shot per match, compared to just three at Plymouth.

Jack Marriott of Peterborough continues to look like the most dangerous attacker in the division. Wigan‘s Will Grigg has looked similarly threatening when he’s gotten onto the pitch, but hasn’t had much joy in front of goal.

Eoin Doyle of Oldham and Rotherham’s Kieffer Moore have both had great seasons so far, although both may see their strike rates cool slightly as the campaign wears on. Meanwhile Bury‘s Michael Smith seems like a player due some better luck.