This page explains how Tracy R Hancock (USATT# 17833)'s rating went from 1470 to 1469 at the Decatur Open held on - 18 Aug 2001. 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.