This page explains how Tak Cheong Ip (USATT# 30468)'s rating went from 2178 to 2154 at the Strongsville Summer Open held on - 21 Aug 2011. 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.