This page explains how Shiqin Xiong (USATT# 80523)'s rating went from 1547 to 1483 at the 888 League event from 29 Oct 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.