Good topic. I'm just getting home from a long vacation and trying to catch up on some posting. ?
This is a good example of a common rule myth- that a runner circling the bases and high-fiving a coach is an out for "assiting the runner". The umpire obviously has bought into the rule myth, as any trained, experienced umpire would not make this call.
The reasons why this was NOT the right call:
- A coach physically assiting the runner is a LIVE ball infraction. The ball is dead on the home run. While some infractions by the runner can be called on a dead ball- such as missing a base, noted above- this one cannot.
When the ball is dead a coach could legally pick up the runner and carry her around the bases. The McGuire home run is a good example of a coach physically assiting the runner, but it not being an infraction as the ball is dead.
- A high five does not constitute "assisting the runner", even during a live ball. The coach needs to grab, push, hold onto or pick-up the runner to either stop her from advancing or to help her get to the base.
This is a point covered in most umpire training classes.
On touching by other teammates, as the runner crosses the plate, there is nothing against this in either ASA or FED rules. NCAA rules do specifically forbid it, and that is the only rule set I'm aware of that has this rule in place.
And, on the runner touching all bases on a home run, the rules require all base runners to touch all bases in a legal manner, even awarded bases following an over throw, a base-on-balls or a home run. If they do not, they are subject to appeal by the defense for an out.