Got a thought provoking question...

[Havok1517]

There is also a monumental difference between a warm-up pitch and a real pitch. Even giving close to maximum effort on a warm up pitch is not the same, because there isn't any stress (physically or mentally). At least the ones in between innings, you aren't really thinking, just loosening up.

Rick Ankiel sure was great then...

[RASportsnut]

A throw to first isn't the same as a pitch, no matter the speed. A pitcher would never throw a sinker, slider, or curve to first. He isn't too concerned about location, or speed. He is simply throwing as quickly to the first baseman as possible.

Pitchers use the same number of warm up pitches between each inning, and again are not doing anything other than loosening. Not the same as pitches, both physically and especially mentally.

[Red Sox Nation]

Perhaps this is the reason why the "100 pitch count" was "created". A lot of pitchers go past 100, such as pitchers who pitch a CG. They might end up with a pitch count of 115 on the boxscore but in reality, with warm-ups, etc, they might have easily pitched 140 or so.