This page explains how Rene Canetti (USATT# 19899)'s rating went from 2123 to 2117 at the 40th St. Joseph Valley Open held on - 16 May 2004. 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.