Who decided that starting pitchers were only allowed to throw 100 pitches? OK, so we can use the eyeball test to see that pitchers usually aren’t usually as sharp in the seventh inning as they were in the first. And there surely must be a point where it would behoove the manager to make that walk out to the mound to politely ask the starter to leave, but what’s the deal with 100 pitches? It’s a nice round number, but does it have any real validity?

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hat tip Tango, BBTF discussion