This page explains how Davis Kam (USATT# 24846)'s rating went from 1849 to 1840 at the NJTTC Super League event from 15 Jun 2012. 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.