This page explains how Tesilimi O. O. Iloh (USATT# 58954)'s rating went from 2091 to 2080 at the May Open held on - 27 May 2006. 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.