This page explains how John Han Lee (USATT# 25372)'s rating went from 1658 to 1683 at the Piedmont TTC RR Open held on - 1 Mar 2003. 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.