This page explains how Ayan Kumar Bagchi (USATT# 76908)'s rating went from 1696 to 1689 at the 2010 Potomac Fall Open held on - 7 Nov 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.