This page explains how Saul Weinstein (USATT# 13864)'s rating went from 1725 to 1721 at the Reno-Sparks Spring Tournament held on - 4 Apr 2009. 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.