I Was Told There Would Be No Math

Ed Zurga

Breaking down the 2013 season stats for SKC and trying to find indicators for a winning performance.

So I like numbers.Kind of a lot.

More than I maybe should.

Enough to be dangerous, as they say.

At work, I tend to be a bit of a spreadsheet jockey. I've got a whole folder setup just called "Spreadsheets" that I add to, if not daily, at least weekly.

One thing I like doing is tracking stats for MLS matches and looking over to try to see if there's anything interesting under the surface. It used to be a little harder, but now that Opta has come aboard with MLS, and plenty of their stat info is available via the MLS fantasy game, you can really find a lot of interesting stuff. I'm going to say interesting and not useful because, contrary to everything I'm saying, I'm not sure stats alone are ever really a good indicator of anything.

A warning : Something I've noticed in American sports is the trend to statify or quantify all things related to sports, and I think that's a dual edged sword... go too far into the realm of numbers and I think you can easily lose sight of what's really happening in a match. All that said, some things do jump out when you step back and take a large veiw of the data pool, and a few things I didn't expect.

First off, here's all the stats I looked at for the 2013 season :

Goals Scored

Assists

Yellow Cards

Red Cards

Saves

Crosses - A cross is defined where the ball is played to their own player in the penalty area

Key passes -A key pass is one that leads to a shot at goal

Big changes created - A big chance is one where the analyst determines the player should score

Big chances missed

Clearences, blocks, and interecptions - Unfortunatly, I was only able to find the combined stat for this

Recovered balls

Errors laeading to a goal

Shots

Shots on Goal

Corner Kicks

Fouls

Offsides

Possession

Passing Accuracy - Unfortunatly I wasn't able to find total passes

Duels Won

Own Goals

Wow. That looks like even more now that I've typed it out instead of just kept it in a spreadsheet. It's not as daunting as it looks though, I promise. Here's a table of simple stats for SKCs 2013 campaign.

Skc_2013_stats_medium

Perhaps the more, or even most interesting bit is the nearly 55% possession stat, along with the fact that SKC finished completing about 76% of their passes (this is actually a bit skewed without the full passing numbers, but good enough for Government work), and won just over half of their duels (Again, slightly skewed) over the course of the season. Where it gets interesting, though, at least I think, is seeing how these stats stack up on a game by game basis. The quickest way to look at this is to compare, on a game by game basis, how many times SKC's stat figure was higher than their opponents. This is easy enough to do in Excel, and the final product looks like this.

Skc_2013_stats_-_greater_than_opponent_medium

Some things really jump out at me. Well, of course 17 times SKC scored more goals than their opponent in win. For all their reputation as a thuggy team though, the stats aren't all that dominant. Even though they commited the most fouls per game in MSL, they only outfouled their opponents in 20 out of 34 games. They only out-yellowed their opponents in 15 games, or less than half.

Some stats that look interesting on the positive side are SKC outcrossed their opponents in 22 matches, out shot their opponents in 25 matches, put more shots on goal in 23 matches, were the more accurate passers in 26 matches, played in more key passes in 24 matches, and out possessed their opponent in 24 matches. Now, perhaps that sounds impressive, but we know football isn't a forgiving game, and games are won by goals and nothing else. Also interesting to see that SKC was rarely offside more than their opponent..

Can any of those stats actually help us see what's important and what's not when it comes to winning a match? Or, at least, what correlates with a positive result? The easiest way to do this is just to sort these stats by matches won.

Skc_2013_stats_-_indicators_medium

Now, perhaps the most interesting stat here is the Clearances, Blocks, and Interceptions, or CBI stat and how well it correlates with an SKC win. Of their 17 wins, only once did the oponnent have more CBIs. Perhaps one probably explanation is that, when SKC has a lead, we adopt a boot-it-away mentality (which I think is a good thing) and play more defensively. Another possibility is that SKC is just really good at clogging passing and shooting lanes, creating more interceptions and blocks. I'd definitely believe the former, I think we're a very good team at picking off passes. We never struck me as much of a"bodies flying around blocking shots" type of dense...

The other interesting thing is that, while SKC is notorious for wild shots and their poor finishing, shots and shots on goal were both also fairly strong predictors of wins. So perhaps, when it comes to shots, it truly is quantity over quality? Of course we'd love to have both. The stuff in the middle is sort of interesting, with one big exception, at least in my mind. SKC lead in possession in only 10 of 17 wins, implying that simple possession isn't enough to really close out a game. Even more surprising, to me at least, was that only 7 times did SKC win the duel battle in their 17 wins. To me, this suggest that a teams defensive form is a more important factor than 1-on-1 defending, and ties back into the above notion that SKC is very good at team defense and clogging lanes, staying compact in a defensive shell.

Saves being low there is interesting, but makes sense. Jimmy rarely needed to come up big for an SKC win, most of the dirty work was done by the defense. Also interesting at the bottom is the fact that, when couging up an error that lead to a goal (something SKC did 7 times), they won only twice. So big errors tended to put SKC into a whole they could only climb out of less than one time in three. Avoiding errors in MLS is a big thing. Conversely, let's look at what SKC opponents table looks like.

Skc_2013_stats_-_opponent_indicators_medium

Well hey now, look at that. The order is identical. I think that, right there, is a key takeaway from this quick look. The way SKC won matches, from a statistical look, is largely the same as the way they lost it. CBIs is the best stat predictor/indicator for a win, better than even assists. Possession and duels won, on the other hand, is not. And teams that made errors which lead to goals had a very hard time coming back.

So what does this all mean? Well, off the top of my head, I'd say there's maybe something to be said for the "Pray and Spray" type of shooting SKC has become known for. Think of it this way. Sporting finished the season with just over 9% of their shots turned into goals. The best team in the league, New York, finished at around 14.5%, or about 160% of what SKC did. Now there'd be two ways for SKC to catch up to the "best" in terms of goals from shots. Either improve their shooting by 60% so they're also turning in 14.5% of their shots into goals, or shoot 60% more shots, without improving their quality... Another thought is that errors leading to goals can be devastating. As I said before, SKC was only able to overcome these errors twice out of 7 times. No team that errored SKC a goal came back to win.

One more thought is that, both SKC and their MLS opponents had very poor "Big chance created" to "Big chance converted/succeeded" ratios... either the Opta guy charting these games has a harsh definition of what a "Big chance" opportunity is, or MLS players struggle with big opportunities... make of that what you will.

Maybe it won't come as a big surprise that things like possession, crosses, corner kicks, or 1-on-1 duels aren't a big predictor/indicator or a victorious team, but often times after games we get to hear the cliché "Dominated the stat sheet everywhere except where it counts", but maybe it's time to move past that and see that things like holding on to the ball don't necessarily translate to success if you're not getting it done elsewhere...

I've only recently compiled the full season data set and haven't really begun to parse it yet. Be warned. Stay tuned.

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