It still is simple and that isn't the only question/problem.

The current incarnation would require a ladder reset otherwise some people would have little incentive to participate if someone were to get far enough ahead on the leader board, as it would require an enormous number of matches to catch up from the bottom rungs. I'd prefer to utilize a system that doesn't penalize newcomers.

Percentage math isn't hard. Everyone on the boards should be capable of doing it and since Rilla would be the one editing it, I have full faith in his ability to do that math.