This page explains how Vishaal Kanitkar (USATT# 72838)'s rating went from 1678 to 1642 at the NJTTC November Open held on - 8 Nov 2009. 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.