How to read relievers' cards

[Barnyard]

I may have missed something online, but I can't figure out what the C ratings mean on a reliever's card. For example, R2/C0 - what does the C0 mean? I have a feeling it's for advanced leagues, but can anyone help me out?

[AeroDave10]

It's the pitcher's closer rating. Similar to starting and relief pitchers, it indicated at what point the pitcher will become fatigued. For example an S6 will become fatigued after 6 innings. The pitcher continues to be ok, but may begin to struggle once a runner reaches base. The same principle applies to closers, but the number is in terms of outs rather than innings. Therefore, a guy who is an R2/CO (e.g. Carlos Marmol) will be at full strength for two relief innings, provided that it is not a closing situation. If it is a closing situation, he is ok only until he gets a runner on base. If he were an R2/C1, his fatigue would kick in once a baserunner reached following 1 out being recorded. That's why most of the top closers are R1/C6. They are probably ok for an inning if it's a non-save situation, but if they are really needed to finish a game, they can suck it up and mow 'em down for 2 innings before starting to break down. I hope this makes sense, and if anyone has anything to add or correct what I said, I welcome him/her to do so. I do wonder why some guys that don't have a closer rating (e.g. Troy Percival) can be placed in save situations and routinely pick up saves. Perhaps someone else can answer that.

[Barnyard]

Thanks very much, now I know why my closers on past teams may have performed far worse than I could imagine.