I'm prepared to feel extremely stupid, but I really have to ask...
On the results page under the box score, pitchers have a PI and PS total. I'd always assumed it was Pitches thrown and Strikes thrown.
However in a recent game that I simmed and am reading the results for, one of my relievers has the following statline:
IP 1.0 / H0 / R0 / ER 0 / BB 0 / K0 / HR 0 / PI 4 / PS 3
Now, if I'm right that it's pitches and strikes, he threw 4 pitches and three of them were strikes. If this is the case, how does he not have a K? He hasn't thrown enough pitches for the strikes to have been at different batters, and while we did have a hit batter in this game it wasn't from this guy.
And more importantly, how can he have pitched 1.0 innings if he only threw 4 pitches?
All the IPs of each pitcher add up to 9, so he did throw 1 complete inning (in which case why take him off?

We did win, but...). So I'm guessing it means something else, but I can't think for the life of me what it might be and it's too short a search term to search for.
Edit: I've just noticed there's a separate line for Pitches-Strikes, but this is 4-3 too. It also says he faced 3 batters. So... what happened to the other two? They just gave up after seeing this guy in action and thought "nah, to hell with it..."?