This page explains how Chi Kin Chan (USATT# 55576)'s rating went from 1993 to 1980 at the Ospreys for Autism Open held on - 21 Apr 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.