This page explains how Roberto R. Saria (USATT# 62622)'s rating went from 1675 to 1671 at the Tucson Open held on - 29 Jul 2007. 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.