This page explains how Alric E. Beach (USATT# 29671)'s rating went from 1560 to 1520 at the South Park TTC 51st RR Open held on - 21 Mar 2009. 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.