This page explains how Soon-Guan Ow (USATT# 45866)'s rating went from 1549 to 1540 at the Spinmania 2002 held on - 8 Sep 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.