Mechanics review

[MD Longhorn]

Originally Posted by CecilOne

The need I meant is judging when the PU is no longer needed at HP, so both don't call the play at 3rd. Is it just dependent on the PU communicating or do you have a criteria for observation by the BU?
Or, are you saying that anytime there is a runner going home on a play, the PU "never" leaves for 3rd, even after the runner scores? Ignore TWP and where the throw goes for now.

Well, there's always an exception to "never", right?

R3 only; Batter hits an apparent triple. PU can cover 3rd. However, as BU, I'm expecting to cover all 3 bases unless I hear my partner say he's got 3rd. In the sitch you actually asked, though... PU has home for R1, and then has to stay home for R2 as well. Besides, I'm in C - so I'm already closer to 3rd anyway. Barring a rundown, I cannot envision a play with multiple runners other than the one I just mentioned where PU would leave home.