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Statistical Analysis of 2013 MLB Season

While the playoffs are not quite over, I decided to spend a little time analyzing the 2013 MLB season by the numbers.

I got some interesting data.

Hey everyone, so as I explained, this is a statistical analysis of the year past. I'm going to be looking at a handful of stats: wins, payroll, avg. age, team cost efficiency, youth value, and youth value vs. league avg.

Don't worry if those last 4 are a little wordy. I completely made them up, and will explain once I get to them.

So let's take a look at Team Wins. Simple enough.

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We all understand wins, so I'll move on.


Team Payroll

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Another simple one here. Let's keep going.

Team Avg. Age

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Yet another simple one. Just the average age of all the players on the big club.

Here's where it gets fun...

Team Cost Efficiency

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This is a measure of how much each team paid for each win. "Efficiency" may not be the greatest word as this would imply that NYY was more efficient than HOU, which is backwards. Nonetheless, we are measuring the value of a win to a team here.

Another fun one...

Age Efficiency

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Here we're measuring how effective a team was in getting production out of its young players. While this statistic does account for all players on the roster, including ones that are above the team's average age, we are plotting wins vs. average age, therefore determining how well the players will age- i.e., if the production is relatively consistent, how many wins the team will gain with each year gained.

Which is expanded with...

Youth Value vs. League Avg.

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Here we can see approximate how each team stacks up against the league average Youth Value, the measure of how much a team's young players are worth. Similarly to cost efficiency, it's the opposite of what it would seem. Teams with lower values get more production per age against the league average than any other team. Note that it is not the St. Louis Cardinals, whose Team Age Efficiency is the highest. This is due to the fact that Youth Value accounts for Payroll, which is significantly higher for the Cardinals than the Rays.

This stat can be extremely useful when measuring how good a job a front office is doing planning for the future based on their current production. Sounds silly, but think of it this way: The lower the Youth Value vs. League Average, if the players on the roster maintain their current production, the more the team will win in the future.

Note that this is not a flawless stat but it a projection of how well the team did in the past year taking into account experience and cost.

As with all stats, these are not flawless. We must beware of outside variables such as injury, trades, etc.

That said, Youth Value vs. League Average is a good comprehensive stat to get a look at the job done by a front office and management. It accounts for age, experience, talent level, production, and cost, therefore it is an expansive measure of managerial efficiency.

In the good chance I've done a horrible job explaining it, look at it this way: with the Yankees coming in around 204%, their front office did 104% worse than the league average. Of course, this isn't accounting for injury. The stat expects the front office to do what it must. It is a harsh stat.

On the flip side, with the Rays coming in at 41%, they did 59% better than the average front office, getting a relatively young roster (28.8 year average age), low payroll ($57mil), and good production (92 wins).

It's a good break from looking at batting average and RBIs. Sometimes managerial/ managemental stats are overlooked, and this is a good way to observe them.

If there's any questions, feel free to leave a comment, and if there are any other analyses you'd like done, leave a comment and I'll try to address it.

Thanks!

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