This page explains how Jeffrey Strawn (USATT# 78386)'s rating went from 1201 to 1177 at the Strongsville Summer Open held on - 24 Aug 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.