This page explains how Quincy Heen-Jung Lee (USATT# 275676)'s rating went from 980 to 972 at the 888 League event from 7 May 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.