Closer Rating Refresher

If I assign Veres (C2) as closer and he gets the first two outs does he suddenly become noneffective in trying for that 3rd and final out or is he OK until he gives up a walk or hit?

He's fine until he gives up a walk or hit.

Each reliever is given a second rating next to his Relief Endurance rating which we will refer to as his "Closer Endurance". For example, a pitcher who is rated "relief (2/3) has a Relief Endurance of 2 and a Closer Endurance of 3. The Closer Endurance rating is a measure of how many outs a pitcher can maintain his effectiveness in "Closer situations". The rating ranges between 0 and 6, or "N" which means he is not used as a closer.
Closer Situation

A "closer situation" occurs whenever the defensive team has the lead and the tying run is at-bat or on-base from the 9th inning on. When this situation occurs then observe the following rule changes:
Reliever being brought into the game

When bringing a relief pitcher into the game in a closer situation ignore his Relief Endurance rating. Instead use his Closer Endurance rating to determine the number of outs he can record before he loses his effectiveness.

Once this number of outs have been recorded, the pitcher will lose his effectiveness as soon as he allows a hit or a walk. If a pitcher is rated 0, then he loses his effectiveness as soon as he allows a hit or a walk. When a pitcher loses his effectiveness, he has reached his POW.

If the pitcher being brought into the game in a closer situation has a Closer Endurance rating of "N", then he enters the game with the loss effectiveness penalty already in affect (he has reached his POW). For pitchers rated as a "N", this penalty is always in effect starting with the first batter they face in a closer situation.

There's a bit more to the closer rule, which can be found in the SOM Super-Advanced Rules here:

https://www.baseballthinkfactory.org/bt ... mrules.htm

Thanks for the information. I thought the closer endurance rating isn’t used with “ATG9 All”.

The Closer Rating is a super advanced feature. However, all recent seasons require you draft at least one reliever with a C rating. So to clarify, does that mean in addition to just the roster requirement, this super advanced "closer rating" fatigue feature is used in Standard leagues of recent individual seasons? Thx.

Here is what the rules say. You can view them by going from Info/Help to Game Rules on your Team page.

You must have at least 25 players and no more than 28 players.
You must have at least 13 and no more than 17 hitters.
At least two of those hitters must have catcher as their primary position.
You must have at least 11 and no more than 14 pitchers.
You must have at least 5 pitchers who have starting pitcher Endurance ratings (e.g. S7).
You must have at least 5 "pure" relievers (i.e. a relief rating (e.g. R2) but no starter rating).
You must have at least 1 pitcher who has a closer Endurance rating (e.g. C4).

I generally don't play individual seasons, but I'm 99% sure they use the closer fatigue rules. You could ask on the 20xx forum, they'll know for sure.
Also, keep in mind that "standard", "advanced", and "super-advanced" have no meaning in the 365 game.