This page explains how Quoc Bao Nguyen (USATT# 64327)'s rating went from 2160 to 2157 at the LATTF event from 8 Apr 2010. 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.