For the generalised mathematical concept, see Martingale probability theory. For either blackjack or a dice game, when playing to win, it is all about the units.st croix gambling ONLINE SHOES AUST In this video I try to explain what a "unit" is in sports betting. Often bettors are referring to risking or betting 1. We explain what units are in sports betting. Units is a term used by sports handicappers, monitors and amateur We're glad you asked because reading this article may prolong your gambling career and the answer may surprise you. First, you have to decide how much you want your betting unit to be. If you have a set amount of money that you are prepared to lose in a session, then a good.