This page explains how Emmanuel K. Amankrah (USATT# 20261)'s rating went from 1491 to 1469 at the Piedmont TT Open held on - 3 Aug 2002. 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.