This page explains how Norman Akbari (USATT# 981)'s rating went from 1492 to 1470 at the GTTTC Family & Friends Closed held on - 2 Aug 2008. 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.