This page explains how John Jarema (USATT# 6975)'s rating went from 1766 to 1761 at the LYTTC Friday Pro League event from 29 Jan 2021. 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.