This page explains how Tay Nguyen (USATT# 83113)'s rating went from 1627 to 1618 at the 2013 Holiday Open Giant RR held on - 7 Dec 2013. 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.