This page explains how Igor Shulkin (USATT# 18534)'s rating went from 2404 to 2380 at the LYTTC Friday Pro League event from 17 May 2024. 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.