This page explains how Andy Liu (USATT# 264276)'s rating went from 2169 to 2084 at the LYTTC Friday Pro League event from 15 Dec 2023. 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.