This page explains how Soon-Guan Ow (USATT# 45866)'s rating went from 1620 to 1605 at the Brooklyn May Open held on - 30 May 2004. 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.