Good point. I was thinking of underdog and overdog as relative, binary terms -- in any contest, one of two dogs is the underdog, and the other is the overdog. If that's not the case, we can expect to see underdogs beating other underdogs, for instance, or an overdog being up against ten underdogs and losing to one of them.
Happy New Year! Here's the latest and greatest installment of rationality quotes. Remember: