This page explains how Peter Lawrence (USATT# 75892)'s rating went from 1632 to 1605 at the OKC Fall Team Tournament held on - 26 Sep 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.