This page explains how Jan Trimble (USATT# 77071)'s rating went from 662 to 607 at the Central FL Fall Open/FL Cup Te held on - 26 Oct 2008. 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.