This page explains how Shiqin Xiong (USATT# 80523)'s rating went from 1500 to 1527 at the 888 League event from 2 Jul 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.