This page explains how Connor Y Lee (USATT# 197388)'s rating went from 2258 to 2250 at the LYTTC Friday Pro League event from 13 Nov 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.