This page explains how Simon Shtofmakher (USATT# 9997)'s rating went from 2176 to 2161 at the NJTTC Friday League event from 2 Nov 2018. 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.