This page explains how Ricardo Brito (USATT# 80953)'s rating went from 1580 to 1549 at the NJTTC Monday League event from 28 Feb 2011. 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.