This page explains how John Han Lee (USATT# 25372)'s rating went from 1596 to 1566 at the Piedmont TT Open held on - 11 May 2002. 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.