This page explains how John T. Lam (USATT# 25738)'s rating went from 1719 to 1692 at the Cinco de Mayo RR held on - 4 May 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.