This page explains how Marc Villanueva (USATT# 28463)'s rating went from 1470 to 1380 at the Cosmopolitan United Church League event from 29 Jul 2008. 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.