This page explains how Janusz Franeczek (USATT# 26185)'s rating went from 2180 to 2173 at the Experior Club League event from 17 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.