Rank is broken in o!m, caring about it is a waste of time. The o!m specific map leaderboards (for the harder diffs) are much more accurate for ranks, but your account rank doesn't matter. The easier maps get you more account rank than the harder ones, which is stupid. Just finished the hardest ranked map? Good job. You get no rank because no-one else has finished it, so you only beat like, 20 people. No rank. Play an easy map, get 99%? Bam, rank pushed up >.>