This page explains how William J Lee (USATT# 83390)'s rating went from 1557 to 1588 at the RoboPong 2011 April BTTO held on - 3 Apr 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.