Has nothing to do with anything, really, in light of the rule above, but I recall that playoff walkoff HR by the Mets; Todd Pratt I think ran onto the field & picked up the hitter in celebration before he even got to 2b, he never did cross home due to the celebration. I'm pretty sure that impacted the O/U for that game too. EDIT: or was it a walkoff HR by Pratt? ¯\_(ツ)_/¯