This page explains how Samuel Chau (USATT# 69700)'s rating went from 1148 to 1144 at the Clearwater Open Orange Blossom held on - 18 Apr 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.