This page explains how Seyed Jafarinejad (USATT# 71678)'s rating went from 1834 to 1826 at the Milpitas Sports Center event from 28 Jul 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.