This page explains how Wan Yee Cheung (USATT# 54068)'s rating went from 1827 to 1828 at the 2004 Meiklejohn Quaker City Op held on - 28 Mar 2004. 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.