This page explains how Dennis Palys (USATT# 61047)'s rating went from 1181 to 1180 at the Wheeling Spring Open held on - 12 Jun 2010. 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.