Efficiency Change Refresher

So here's the concept: we want to evaluate each touch by the difference between expectations and results. Input Contact: this serves as the expectation - given the situation you've been dealt, how well do we expect you to do? Output Contact: this serves as the result - looking at both terminal & non-terminal results Serving, [...]

Attackers above the norm

So I'm procrastinating on my thesis again and wanted to see how attackers stacked up relative to the league - on a per team basis. I've measured success via Eff Change in this case, built using league averages. For example, a Big Ten player who attacks in zone 2 after a perfect dig in transition [...]

Efficiency Change – Pac 12

Here's just a quick snapshot of Eff Change taken from a late September match between UCLA and USC this season. I've explained the idea behind Eff Change in a couple posts but figured I'd throw it out in a Pac 12 post for fun. The idea plays off the FBSO and Service Error concept that different teams [...]

Blocking Responsibilities – Pac 12

Just to preface this post, it's basically the same as the responsible blocker one I put up earlier using the Big Ten data. That post explains exactly how responsibilities are split between blockers against specific types of sets. My Pac 12 knowledge is admittedly lacking and I had to google some of these kids. Schoenlein is [...]

Skill Efficiencies by Team

This viz is the follow-up to the skill breakdown per player post from a couple days ago; a composite look at how each team fares on a per skill basis. The teams you see are ordered by their finishes in Big Ten conference play in the 2016 season and the data used is from conference matches only. [...]

Attacking Theory

Hey Kolby. So I've been throwing out the question to some friends about what kinds of stats they'd like to see but have never had access to. Attacking is naturally something that comes up as it's the most common way to score points and thus a deeper understanding would be beneficial. Above is my proposed progression [...]

Specialists or Generalists?

  Yes. I know this looks like some tutti-frutti clown vomit. Thanks. A college buddy of mine, Teddy Niemira, posed a question revolving around developing players' all around game or merely enhancing strengths as a better use of a coach's time. Do you want someone who is pretty good at everything or elite at one [...]

Service Error and Eff Change

*Check out the Eff Change posts if you haven't. Output, Input, Eff Change Returning to the very first question - How aggressively do we want to serve? Here is what team service error% looks like graphed against the average Eff Change per serve in each match. Again we see an inverse relationship between the two [...]