This page explains how Brian Zhao (USATT# 89429)'s rating went from 1692 to 1676 at the 2015 TX Winter Games held on - 17 Jan 2015. 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.