The page currently says: "The AGA has no ranks at all, just numerical ratings. There is no official translation between numerical ratings and ranks"

But at http://www.usgo.org/files/pdf/AGARatings-Math.pdf we see this stated: "The rating system is scaled so that it corresponds to the traditional kyu/dan ranks. Ratings in the range (3.0, 4.0), for example, correspond to that of a 3-dan, while those in the range (−4.0, −3.0) correspond to that of a 3-kyu. There are no ratings between -1.0 and 1.0; there is a ratings difference of 0.02 between -1.01 and 1.01."

We should probably fix the text on the page.