Archive for small sample

SSNS: C. Anderson, Stroman, L. Castillo

Last week, I reintroduced my Small Sample Normalization Services (SSNS), analyzing strong starts by Dylan Bundy, Jose Berrios, and Patrick Corbin in the context of other small samples within their respective careers or recent histories. This time, I discuss three more odd starts among starting pitchers and their implications.

Chase Anderson, MIL SP

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SSNS: Bundy, Berrios, Corbin

Every time an analyst uses the caveat “small sample size, but,” an angel gets its wings. And then that angel takes flight and also analyzes a small sample size.

I preach patience when it comes to the first few weeks of a Major League Baseball season, and I try to practice it, too, regarding both early-season breakouts and duds. Aside from transactions related to the disabled list, I have yet to drop any player I drafted who wasn’t legitimately dead weight (like my decaying shares of Melky Cabrera and John Lackey) or, in ottoneu, a roster burden, such as a hapless $7 share of a helpless Alex Cobb.

That said, I can’t simply wait until mid-May or whatever to make meaningful analyses of players. But I also can’t make knee-jerk reactions about 30 innings or 90 plate appearances. I try to reconcile this cognitive dissonance by engaging in what I called last year Small Sample Normalization Services (SSNS). The intent: first, to attempt to find similarly long and (un)productive streaks in a player’s past; second, to evaluate how similar or comparable those streaks actually are; and, last, to slap an appropriate level of excitement or panic to the performance in question. If we can’t say with absolute certainty that we’re watching a player do something sustainable, then maybe it helps to know if he had done something similar in the past. If not, what befell him afterward? And if so, how should we move forward with him?

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SSNS: Vargas, Bautista, Miley, Gausman

Last week, I inaugurated RotoGraphs’ Small-Sample Normalization Services, or SSNS. Said services attempt to contextualize good and bad starts within a particular player’s history of achievements (or lack thereof). Assessing player performance based on small samples seems distinctly difficult in April, when, for whatever reason, we perceive players with tattered histories as blank slates. Occasionally, there’s merit to these perceptions. More often, we find out a player’s April is no different than his May or June or July, for example, when a small-sample performance might go less noticed than it would when starting from zeroes.

Here are a handful of players that have caught my eye lately.

Name: Jason Vargas, KCR SP
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Incredibly Small Samples: Fun, Agony & Something Helpful

Did you draft Dustin Pedroia, who is on pace for almost 300 home runs? Mookie Betts? In a fit of extreme homerism, the entire Red Sox lineup, which will surely score 1,296 runs? That must feel pretty good. Good for you, Pete. Give yourself a pat on the back.

Or, wait — you were the one who drafted Kyle Lohse, weren’t you? Threw a mid-round pick at Mat Latos? Wrote “stream Nate Karns” on your list of good Tuesday decisions? Do you regret it?

Man, there have been some truly brutal starts to kick off the season. It’s really easy to make a knee-jerk decision in reaction to such preposterous, ego-damaging, season-dooming starts, but you have to remember — and I think it goes without saying — that these guys will (probably) never be worse this year than they were today.

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