Runs Scored

[CecilOne]

Originally Posted by SamG

But even if R2 IS a force out, the run (R1) would still score, wouldn't it? Let's change the situation a little...
Bases loaded, one out.
Ground ball to F6... she throws to F5 for the force on R2.
F5 sees R3 making it to 2nd, so tries to make a play on B/R at first.
B/R is safe and F3 throws back to F5 who tags R3 trying to steal.

There's still three outs and R1 still scores. So why does the timing matter (in the OP)? What am I missing?

Yes, 3 outs, but in this scenario, the third out is not force or BR (tags R3 trying to steal); so the run scoring or not is determined by the timing of R1 getting to HP before the out or not.