This page explains how Bikramjeet Singh (USATT# 27571)'s rating went from 1906 to 1867 at the October Open held on - 29 Oct 2005. 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.