This page explains how Andy Liu (USATT# 264276)'s rating went from 1967 to 1947 at the LYTTC Friday Pro League event from 13 May 2022. 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.