Long course, typically, is half Iron (or 70.3, if that's your flavor) or beyond, including the Iron distance.<br><br>
Half Iron is the "old," or even non-branded edition of a race that is half the distance of an Iron distance event. 70.3, the total distance, is now a title being promoted by the brand Ironman.<br><br>
It's all the same. Care what they call it if you will. I personally do not. Distances are all the same.