This page explains how Donald Farnsworth (USATT# 29614)'s rating went from 1366 to 1300 at the Huntsman World Senior Games held on - 12 Oct 2006. 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.