Spring training can be helpful in determining a pitcher’s future performance. While most of it should be taken with a grain of salt, sometimes it can be a calling card for things to come. Some major components to look out for involve velocity, command, and pitch mix.
Edit (3/29/17, 7:55 pm EDT): Brent Hershey of BaseballHQ and Ron Shandler’s Baseball Forecaster (very politely) brought to my attention that this has been done before! By Bill Macey back in 2012. Formerly behind a paywall, it has now been made public for your reading pleasure. I didn’t even know this research existed (so I’m really glad Murphy brought it to my attention); I am always reluctant to ever claim to break ground in this field that progresses so quickly but also has such a rich history of research. Please consider the following research a companion to and external validation of Macey’s work.
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I welcome all constructive criticism. This research is not especially rigorous, but given the nature of the claim — a legitimately significant spring training statistic! — it merits the disclaimer.
I found a statistically significant spring training statistic.
I’d rather not rehash the history of research and speculation regarding The Spring Training Stat(s) That Matter. Just know that, outside the modest results from this Dan Rosenheck piece in The Economist, it’s generally accepted that Spring Training statistics mean virtually nothing, and you’ll read all manners of baseball writers bashing this notion.
The big caveat is most of this research concerns individual players. Mine: team-level statistics. Alas, it’s an inherently different beast with which I’m dealing. Despite small within-year populations (30 teams rather than hundreds of players), the observation-level sample sizes are much larger (hundreds of plate appearances rather than dozens), making the odds of finding meaningful correlations much better despite fewer data points.
Per usual, I buried the lede: a team’s rate of stolen base attempts (calculated from stolen bases [SB] plus caught stealing [CS]) during spring training is actually meaningful. I’ll get to the implications of this later because there are many. First, let’s dig into the guts of the research. I gathered team-level spring training statistics from 2006 through 2016 and paired it with regular season statistics from the same span plus 2005.
While pretty much the entire Fangraphs staff was in Arizona, your intrepid author eschewed the desert for the tropical breezes of Florida. Different teams. Higher chance of rain. Lots more driving!
Anyway, I traveled around the Sunshine State hitting up minor league camps, watching minor league games and also checking in on some of the best amateurs for the upcoming MLB Draft and International signing period. It’s very difficult to plan these things out ahead because teams haven’t really plotted much out by the time I booked my trip, but I managed to catch some of the better prospects in the game despite that. Today I figured I’d share some observations on players I saw:
You’re gonna have to learn your clichés. You’re gonna have to study them, you’re gonna have to know them. They’re your friends. Write this down: “We gotta play it one day at a time…I’m just happy to be here and hope I can help the ballclub…I just wanna give It my best shot and, Good Lord willing, things’ll work out.” — Crash Davis
While the influx of baseball chatter and interviews is sincerely welcomed at this time of year, we, as fantasy owners, must maintain a clear head and corral that child-like jubilation that a new baseball season brings. You’re going to hear a number of comments regarding players and teams from both coaches and general managers, as well as from the players themselves. You’re going to hear things that get you excited about a particular player and if you don’t take things with a grain of salt, you could get swept up in the pomp and circumstance of spring training, lose sight of what’s actually in front of you, and fall victim to the hype.
So with that, let’s look at some common phrases you’ll hear and how you might want to react to them. Read the rest of this entry »
