This page explains how Arun Jha (USATT# 126317)'s rating went from 1620 to 1545 at the ICC Juniors and Adults League event from 26 Jan 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.