This page explains how Peter Yu (USATT# 70303)'s rating went from 1521 to 1519 at the 2007 Millcreek Giant RR held on - 22 Apr 2007. 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.