This page explains how Felix K. Kwabena Amankona-Diawuo (USATT# 31475)'s rating went from 1657 to 1686 at the Porky's Fall Classic held on - 15 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.