This page explains how Michael Kendrick Groom (USATT# 77764)'s rating went from 717 to 1005 at the 2009 Rose City Open held on - 28 Jun 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.