This page explains how Wai M. Wong (USATT# 45824)'s rating went from 2059 to 2047 at the The Top Spin Saturday League event from 28 Feb 2015. 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.