This page explains how Trac B. Cao (USATT# 26110)'s rating went from 1846 to 1832 at the Minnesota State Championships held on - 25 Jan 2009. 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.