Errant throw / Safety base

[BretMan]

Originally Posted by MrRabbit

Question, Did I miss something?
We were talking about an errant throw pulling F3 on to the orange bag and the batter runner being out?
Doesn't that fall in to the one big bag category with a batter runner?
8-2-M-5

Just semantics, I guess...

The term "one big bag" is generally used to explain how the double base is regarded on plays where the batter-runner has already reached/passed first base (ie: has transformed from "a batter-runner" to "a runner").

You could put it this way:

After the batter-runner has reached/passed first base, then the double base always becomes "one big bag".

On the initial play against a batter-runner, almost all of the time it's treated as two separate bases, with just a couple of exceptions. Sometimes it's treated as "one big bag".