This page explains how Igor Shulkin (USATT# 18534)'s rating went from 2340 to 2339 at the LYTTC Friday Pro League event from 28 Feb 2020. 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.