Personally, so long as they had a judge, no matter how loosely around, and agreed, then it's ranked. What rules and stuff they go by, as I have maintained, is entirely up to them. 

I would love a uniform set of rules, which would make things much easier, but some folks don't like some rules, or understand them, or what have you. Then every other month we are arguing over them, and a new ruleset, etc.

Obviously there are flaws based on this, as any two people can get a third ringer and pad their points.