This page explains how Bogdan Plugowski (USATT# 69537)'s rating went from 1990 to 1973 at the Experior Club League event from 3 Feb 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.