Nope, it's a hidden skill rating used for matchmaking. It's tied to how many glory points you gain/lose at each rank though so that can give you an indication. The rank where you start to lose a lot (40 for a win, 68 foe a loss) is the rank where the system places you. For example that happens for me at Fabled 3, so my skill rating is somewhere in Fabled 3 I guess. It would make more sense to just use the skill rating as your rank and have them be one and the same but that's not what's been done.