This page explains how Vadik Nisenbaum (USATT# 83156)'s rating went from 1612 to 1575 at the BTTC November Open held on - 21 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.