This page explains how David sui ng Li (USATT# 1504)'s rating went from 1561 to 1559 at the Southeastern Classic TT Tour. held on - 26 Apr 2008. 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.