This page explains how Marc Villanueva (USATT# 28463)'s rating went from 1720 to 1706 at the Rockford Christmas Open held on - 14 Dec 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.