This page explains how Prashanth Prahlad (USATT# 52333)'s rating went from 1622 to 1607 at the Intermediate League event from 9 Dec 2010. 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.