Let’s Review Some Reader Predictions
Nearly eight months ago, I asked you to predict the future. Here are the words I used to introduce that piece:
In 2017, the fastball rate fell again. It’s been falling for some time now, but in 2017 it fell again, from 56.7% in 2016 to 55.6% last year. There’s some reason to think that the drop in the fastball rate is linked to the increase in baseball’s increasing swinging-strike rate, which in turn is linked to the rise in strikeouts and hit batsmen, and on and on and on. Baseball is a complex system of action and reaction, and small changes can grow large quickly.
So this year, I want to know: what do you think will happen to some of baseball’s key stats, league-wide, in 2018? Maybe you think home-run rates will go up and strikeouts will fall. Maybe you think if home-run rates go up then strikeout rates have to fall. Maybe you think it’s the other way around. I don’t know. But I want to hear from you, and most of all I want to hear why you think certain changes are linked, and others aren’t.
Below are a series of tables featuring 10 years’ worth of data for a few key metrics. I’ve also included percentage changes year over year. Below each table is a poll which asks you to indicate whether you think a given statistic will increase or decrease — and, if so, by how much. Answer each poll, if you wish, and then also indicate in the comments why you voted the way you did on one statistic and not others. In a year or so, I’ll come back to this and we’ll talk about it as a group. Maybe it’ll be interesting. Maybe it won’t! We’ll see.
A lot has happened since I wrote those words: I’ve gotten married, my wife and I moved from Boston to Seattle, and I became a telecommuter (in my day job; this one has always been virtual-only). Oh, and the 2018 season came and went. The future I asked you to predict is now a part of the history books. Let’s see how good you were at reading ahead.
Note: a reader of the March post suggested he/she was unsure if answers should be submitted in percent or percentage point. It’s possible, as a result, that a few ballots could distort the overall results. Because I presented all the original deltas in the form of a percent, however, that is how I have once again presented them here. Fortunately, none of this matters at all!
Fastball Rate
Year | FB% | FB% Delta |
---|---|---|
2008 | 60.7% | n/a |
2009 | 59.7% | -1.65% |
2010 | 58.7% | -1.68% |
2011 | 57.8% | -1.53% |
2012 | 57.6% | -0.35% |
2013 | 57.8% | 0.35% |
2014 | 57.7% | -0.17% |
2015 | 57.7% | 0.00% |
2016 | 56.7% | -1.73% |
2017 | 55.6% | -1.94% |