This page explains how James Canine (USATT# 71986)'s rating went from 1291 to 1289 at the RoboFit Summer League event from 7 Aug 2010. 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.