This page explains how Anton Shapovalov (USATT# 76847)'s rating went from 1413 to 1353 at the October WATTC Club Tournament held on - 17 Oct 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.