This page explains how Douglas Tien (USATT# 55269)'s rating went from 1817 to 1805 at the Milpitas Sports Center event from 16 Jun 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.