This page explains how Cory Johnson (USATT# 29085)'s rating went from 1902 to 1875 at the Butterfly East Gate Open Series held on - 13 Apr 2013. The links below take you to pages that describe various aspects of the rating processor.

The rating processor goes through 4 passes in order. The links take you to pages that provide detailed explanations of the calculations during each of the 4 passes.