This page explains how Alex Averin (USATT# 81774)'s rating went from 2261 to 2177 at the LYTTC Friday Pro League event from 3 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.