Number of Pitches (NP)
A pitcher's total number of pitches is determined by all the pitches he throws in live game action, including strikes, unintentional balls and intentional balls.
The number of pitches thrown by a pitcher is a very important number in any baseball game. It's often used to determine when a pitcher might begin to get tired. Conversely, it often benefits a hitter to face a high number of pitches, because the more pitches he sees, the more likely he is to wear down a pitcher.
Pitch counts became prominent for pitchers in the 1980s. Many games taking place before then do not have records of the number of pitches thrown, but pitch counts (and innings-pitched totals for individual pitchers) were much higher before then.
In A Call
"pitch count," "total pitches," "pitches thrown," "tosses"