League 1 attacking and defensive efficiency in more detail

Building on my latest set of posts, I’m currently enhancing my attacking and defensive efficiency graphics one division at a time. Tonight it’s League 1 which is getting a polish, starting with a look at how each team’s attacking and defensive efficiency (calculated from the ratio of shots taken / faced to goals scored / conceded) has changed since the start of the year.

As usual you can click these to open larger versions in a separate tab:

As usual, the further left a team is, the fewer shots it takes them to score, and the further up they are, the more shots it takes to score past them. Put simply: top left = good, bottom right = bad, everything else = a mixed bag.

The small dot at the other end of each line shows where that club was on 31st December 2011. A few observations to give you the idea:

  • Charlton are sharp at both ends of the pitch and have been getting even better defensively since the start of the year.
  • Rochdale‘s defence is quite poor at repelling shots, needing an average of only 6 to breach it, while their already-inefficient attack is getting worse.
  • Chesterfield are becoming more efficient in both attack and defence, which could see them escape the drop zone if they can build on that improvement.
I’ve also split the chart out to show home and away records separately. First the home one:

It’s interesting how this seems to follow a slightly upward-sloping line apart from a few outliers at the top.

  • Tranmere are one such outlier – their attack is extraordinarily wasteful at home, but only leaders Charlton have a more efficient home defence. This quirk is probably what’s keeping them out of the relegation zone.
  • MK Dons are in the opposite corner and are very interesting. What you can’t see from this chart is that they are phenomenally good at restricting their opponents’ shooting chances at stadium:mk. What you can see is that this isn’t necessarily helping as their defence takes the fewest shots to breach, which suggests that they might get found out against opponents who excel at creating chances. It also somewhat undermines the benefits from their parallel achievement of having the most efficient home attack in the division, and potentially explaining why they’ve drawn as many as they’ve won at home in spite of this.

Here we can see a slightly downward-sloping line of sorts, again with a few stubborn outliers at the top.

  • Stevenage are astonishingly resilient at the back away from home, able to soak up over 15 shots on average before conceding. That’s nearly 3 times more than Sheffield Wednesday can on their travels, which could well cost the Owls their promotion bid.
  • Things may not all be going Huddersfield‘s way at the moment, but Lee Clark did manage to get them focused on scoring away – it took them less than 5 shots on average to score each away goal, which is less than half as many as some of the division’s strugglers have needed.

A quick favour…

If you could click play on the video below that’d be great, and if you find yourself watching it all the way to the end and decide to share it with others that’d be absolutely brilliant.

It’s a short and very well-made film about my using Twitter to connect fans of Torquay United all around the world, including lots of inspirational footage from an evening match at Plainmoor. It’s had 20,000 hits in its first week, which is evidence that it’s actually quite good and I’d love for it to be seen as widely as possible. As soon as you click play it counts as a view, so that’d be enough for me! Apologies to regular readers of the blog who will have already seen this plea a few times – I will stop haranguing you soon, I promise.