This page explains how Khoa Dinh Nguyen (USATT# 8683)'s rating went from 2622 to 2671 at the 2004 North American Olympic Tr held on - 15 Feb 2004. 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.