The Anatomy of an Open Play Shot from Outside The Box or Keepers and Culpability

Having now recorded all the publicly available shot data (30,000+ efforts) and found little difference between our findings at the 2,000 and 15,000 recorded shots stage, we thought it was time to do something a bit more interesting with the data.

What has really intrigued most people and sparked the most debate is the fact that it takes 33 direct hits at goal for an open play shot from outside the box to go straight in. This season the trend continues – it’s just a shade under 33.5. So what happens to all these speculative efforts? Here’s what’s happened this season:

AnatofSub

That tells us not even a quarter of shots from outside the box in open play have tested the goalkeeper. However, on average it’s taking less than 8 shots on target to beat the keeper from range.

There seems to be a general feeling amongst number bloggers that there’s a lack of decent, reliable stats for goalkeepers and we at Differentgame have whined about it ourselves in the past. The consensus is that save % varies too much from season to season to conclude anything from. However, Differentgame feel that if there’s one kind of shot a keeper could be most fairly judged on, it’s the hit from distance. It’s far enough away from goal, and will generally have numerous defenders trying to get in the way. Ask any keeper and we’re sure none will be happy at getting beat from outside the box.

So which keepers have been good and which bad over the last couple of seasons at saving open-play shots from outside the box?

Save%SOTSOpenPlayOutsideBox

The chart is handily colour coded to make it easy (hopefully) to see the variation over the two seasons. There’s just two keepers been consistently good (green) – De Gea and Cech and six keepers have been consistently average (amber). No one has been consistently poor (red). Six have moved up or down one grade, and only one, Foster has moved full across the range from good last year, to poor this year. We feel that by these measures there’s at least some value to be taken from save %.

However, it doesn’t quite give us the full picture. Remember we said that this season, it was taking just under 8 shots on target from open play outside the box on average before one went straight in? Last season it was just over 7 (it’s difficult to describe just how abysmal Robinson was for Blackburn). We can therefore compare keepers over the last two years to the average:

Open Play SOTs Needed to be Beaten

Differentgame think that gives a better picture of who’s hot and who’s not. De Gea’s record since being in the EPL is staggering. But we aren’t quite finished (apologies if this is long). Being of the Everton persuasion we’ve often noticed over the years how far off his line Tim Howard tends to be when he’s beaten from distance. Almost to the point where he seems to dive underneath the ball. Having watched Richard Wright and Paul Gerard do the same over the years it’s begun to grate a little.

Now the data guys with cameras at the ground, Opta and Prozone, can track the exact positions of players on the pitch. Understandably, this isn’t available publicly as it’s sensitive information. So we did the next best thing and recorded our own data. We wanted to see which keepers attempted to make saves from shots from outside the box (open play) in the front portion of their six yard box, and those that made them in the back portion nearer their line.

It’s a long old process so we stuck to the action for this season. To record where saves were made we used Stats Zone and we also watched the footage of each of the 79 open play goals scored from outside the box after the 25 game stage this season. Now, with the usual rider of small sample size, plus the fact that our eyes aren’t as reliable as x,y coordinates plotted by cameras all over the ground, here’s what we found:

Of the keepers in amber and red in that last graphic, all of them bar Hart have attempted to make a quarter or more of their saves from distance in the front portion of the six yard box this season. Most are attempting a third of their saves from there and some are near half.

Of the keepers in green, only Begovic is attempting more than a quarter of his saves from distance in the front portion of the six yard box.

This season, it has taken just 5 shots on average to beat a keeper when he attempts to make these saves from the front portion of his six yard box (or even further out in some cases). It has taken over 11 shots to beat a keeper when he stands in the back portion of his six yard box, nearer his line:

KeeperPositioning6YdBoxFinal copy

Standing further forward reduces a keeper’s reaction time. Anything just out of reach has time to dip or curl (or both) into the net as the ball loses acceleration. We reckon if Begovic stood a couple of yards nearer his line, he’d be as stunning as De Gea is at saving open play shots from distance.

Advertisements
This entry was posted in Sports and tagged , , , , , , , , , , , , , . Bookmark the permalink.

11 Responses to The Anatomy of an Open Play Shot from Outside The Box or Keepers and Culpability

  1. Pingback: The Anatomy of an Open Play Shot from Outside The Box or Keepers and Culpability differentgame | Lync News

  2. Just found you on Twitter. Great analysis, thanks for sharing this! I will evaluate all the keepers with my algorithm, too. Will be interesting to compare.

  3. Pingback: American Soccering Gossip 02.18.13 « Everybody Soccer

  4. Anonymous says:

    I have coached women’s football for 25 years and the need for female keepers to stay on their line when the ball is outside the box is even more pronounced
    (a) because of lack of height compared to height of goal
    (b) because of lack of ability to move backwards and also generate upward power to make saves
    (c) inability to judge the flight of the ball accurately
    The female keeper has a much better of chance of making saves if she is no more than 2 feet off her line because she can probably move laterally quickly enough to save most shots because of the lack of power in most efforts on goal.

  5. Can you email me pls

  6. Pingback: What’s up with Jelavic? |

  7. Pingback: Bale v Walcott – The Real Story | differentgame

  8. Pingback: Two halves of Manchester United’s Defensive season | thebubblegame

  9. Pingback: A Hole in the Hart? | differentgame

  10. Pingback: Who is the Premier League’s Best Shot-Stopper? | differentgame

  11. Pingback: Tim Howard – Leaving the Comfort Zone | differentgame

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s