This page explains how Ed Watkins (USATT# 89661)'s rating went from 987 to 1021 at the Mohawk Valley TTC League event from 10 Jun 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.