This page explains how William Turpin (USATT# 80644)'s rating went from 1041 to 1040 at the Waco TT Tournament - State Games 2010 held on - 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.