Originally Posted by JMoff:
I'm assuming by "DI" you mean "CI". On "CI" I count the pitch for the pitcher and score it a strike. He did throw a strike after all as the batter swung at it.
Its interesting that you started with that particular comment. I’d always called it CI myself, then when I was writing the program I was looking in the rulebook to come up with a way to label a batter reaching on an award and read this.
[i]OBR 2.00 …(b) Defensive interference is an act by a fielder that hinders or prevents a batter from hitting a pitch.[/b]
Ever since then, I’ve used DI and CI interchangeably. 
It sounds as though you still score using pencil and paper because that’s exactly how I used to do it myself. But having the computer do it is a tad more complicated. The way I have it counting pitches is, I determine whether the pitch was a ball, fouled, missed, called strike, or a BIP, then add them together to get a pitch count.
Unfortunately, when I did the logic, I didn’t take into consideration this situation. I did for a HBP, where it gets counted as a pitch and a ball, but because of the logic of the code, I had to count this one differently. What I’ve ended up doing was treating like a HBP only having it count the pitch as a strike rather than a ball. I’ve also made it a called strike just because there are other ways the batter could be “hindered or prevented” from hitting a pitch, and I didn’t want to have to figger out which during the game.
