This page explains how Eddie G.W. Chin (USATT# 4840)'s rating went from n/a to 1538 at the Cinco De Mayo RR held on - 2 May 1998. 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.