The Golden Ring Marathon

[Luthien_ Tinuviel]

Why wouldn't everyone know the difference?

Well, you have a point with "inaugural", but I agree that some people might be confused by the term or not know the difference. You see, "inaugural" means by definition "the first" or the one that sets into motion", whereas "first annual" implies that not only is it the first, but it will be repeated every year. So I think that first annual is probably fine as is.