This page explains how Peter (Liyang) Hua (USATT# 24333)'s rating went from 1859 to 1827 at the 2005 ACUI Collegiate Nationals held on - 2 Apr 2005. 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.