This page explains how Soon-Guan Ow (USATT# 45866)'s rating went from 1649 to 1644 at the 3rd FIT Open TT Championships held on - 13 Nov 2005. 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.