This page explains how David Eric England (USATT# 54905)'s rating went from 1488 to 1479 at the Central Carolinas Super League event from 13 Jul 2009. 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.