RotoGraphs’ Small-Sample Normalization Services (SSNS)
By clicking this link, you (“Reader”) have opted into an agreement (“Contract”) with FanGraphs, Inc. (“Handsome Author”). Handsome Author agrees to provide Small-Sample Normalization Services (SSNS) to Reader in the following post (“Post”). In return, Reader, presumably interested in Handsome Author’s analysis or merely intrigued by Handsome Author’s curious Post title, shall appreciate said services no matter what.
SSNS seeks to normalize good and bad performances witnessed in the first two weeks of the 2017 Major League Baseball (MLB) season. Handsome Author has noted previously, here and elsewhere, that small-sample booms and busts in March and April would go largely unnoticed in other months in which the sport of professional baseball is played, such as May, June, July, August, or even September.
Accordingly, SSNS looks at a player’s past performance as a benchmark for current performance using FanGraphs’ (and not Handsome Author’s) very nifty player graphs. It answers the question, “Has a player done this before?” Perhaps, Reader. Perhaps. But perhaps not. SSNS then assigns an Excitement-to-Panic Level (EPL) on a 5-point scale from 1 to 5 as well as an Adjusted Excitement-to-Panic Level (AEPL) once Handsome Author has properly assessed the historical significance of the player’s performance — within the context of the player’s self.
In this inaugural edition, Handsome Author will use SSNS to evaluate five hitters primarily in terms of their strikeouts (K%) and walks (BB%) through their first X number of games, with some other statistics incorporated as well. SSNS is not the be-all, end-all of player performance, but knowing we’ve seen a player “do this before,” as they say, is enough to calm one’s turbulent heart and mind.