I don’t believe I’m out of line when I say that, of life’s most enjoyable pleasures, many are to be used, collected, consumed, or practiced in moderation. “You can have too much of a good thing,” they say. Food and alcohol, for example. Both delightful. Both substances which, were I unaware of the consequences of surplus consumption, I would regularly consume in excess. Both substances, in fact, which I do regularly consume in excess, despite being completely aware of the consequences. Likewise, I’ve taken nary a vacation which I didn’t find overindulgent. Don’t get me wrong — a break from the norm for a bit of traveling is always welcome, but I’m perpetually exhausted by the degree of stimulation that comes with falling asleep and waking up in a new bed, having to process an unfamiliar environment and having to create and enact routines that differ from the ones to which I am accustomed. Perhaps I’m just outing myself as a homebody, but without fail, I long for the comforts of a familiar bed, environment, and routine approximately 24-48 hours prior to the conclusion of any extended trip.
I recently sought to find an example of overindulgence in a baseball. A player whose approach, for example, was perhaps hindered by too much of a good thing. It was sort of an offshoot of the post I wrote yesterday which concerned Miguel Sano’s surprisingly disciplined approach against breaking balls. In that post, I found, among other things, that Sano took plenty of early at-bat breaking pitches for balls, and so he found himself in plenty of hitter’s counts, and not only that, but he capitalized on his abundant hitter’s counts by amping up his aggression and attacking pitchers when he had the upper hand.
It’s a fairly fundamental strategy, but there’s a most extreme everything, and someone had to be on the other end. There has to be someone who finds themselves in plenty of hitter’s counts but, for whatever reason, actually becomes notably less aggressive and less attack-oriented when they hold count leverage over the pitcher.
So I ran some BaseballSavant queries and I produced a couple lists in a spreadsheet that showed me overall swing rate, and ahead-in-the-count swing rate, and I calculated the difference between the two. Some interesting names popped up near the top — Xander Bogaerts, Matt Carpenter, Anthony Rizzo — but something seemed off, and I realized an unaccounted-for variable in my search: not all batters are pitched the same when they’re ahead in the count. Certain hitters get far more or fewer pitches to hit when ahead in the count, and so their swing rates are partly dictated by the pitcher. To control for this, it would be wiser to search only for the difference between overall in-zone swing rate and ahead-in-the-count in-zone swing rate. This was a search that yielded a particularly intriguing result.

Most Passive Hitters in Hitter’s Counts
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