You might hear a lot about how Pablo Sandoval is better in the postseason over the next week. His career .333/.372/.609 batting line and a seminal three-homer performance are easy enough to point to. The problem, of course, is that we’re talking about 94 plate appearances, the equivalent of about three weeks of regular season play. Not a great sample.
On the other hand, somewhere around 100-150 plate appearances, certain things do actually accrue enough sample to become meaningful. Things like swing and contact rates, since they are on a per-pitch basis and we get close to four pitches per average plate appearance, tend to tell us if a player has changed in a meaningful way over a short period of time. Ground ball and flyball rates can do the same.
So let’s pretend that Pablo Sandoval’s postseason history is the first month of a season. Has he changed? Does he do anything significantly different in the postseason? Because if he has, than maybe we can smile knowingly and pass on Sandoval’s postseason OPS. Because we know some of the underlying skills look different once the lights shine brighter.
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