This page explains how Tay Nguyen (USATT# 83113)'s rating went from 1618 to 1638 at the Champaign Open Winter Giant Round Robin held on - 15 Feb 2014. 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.