This page explains how Felix Dubinsky (USATT# 28275)'s rating went from 1820 to 1815 at the NJTTC Thursday Adv League event from 9 Nov 2017. 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.