This page explains how David Y Yoo (USATT# 96977)'s rating went from 1772 to 1655 at the LYTTC Friday Pro League event from 7 May 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.