This page explains how Jonathan Ou (USATT# 73748)'s rating went from 2112 to 2103 at the 2009 Haines City Summer Classi held on - 18 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.