This page explains how Rex J. Casstevens (USATT# 49120)'s rating went from 1033 to 1018 at the Hot Summer Open held on - 25 Jul 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.