This page explains how Jackie Feng (USATT# 70467)'s rating went from 2048 to 2040 at the LYTTC Wellman Wu Memorial - Giant RR held on 14 Aug 2021 - 15 Aug 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.