This page explains how John F. Mcfadden (USATT# 29798)'s rating went from 1660 to 1644 at the NYTTF August Open held on - 24 Aug 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.