This page explains how Davis Kam (USATT# 24846)'s rating went from 1900 to 1891 at the NJTTC March Open held on - 27 Mar 2011. 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.