This page explains how Joshua Mak (USATT# 82025)'s rating went from 1834 to 1821 at the Texas Wesleyan Open held on - 1 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.