This page explains how Cesar T. Serna (USATT# 2316)'s rating went from 2120 to 2046 at the Austin Summer Round Robin held on - 5 Jun 2004. 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.