This page explains how Sai Kuen (Jack) Li (USATT# 69961)'s rating went from 1520 to 1442 at the 5th FIT Open TT Championships held on - 19 Nov 2006. 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.