This page explains how Huanhong Xia (USATT# 266435)'s rating went from 680 to 687 at the 2022 June Open @ Princeton Pong held on 4 Jun 2022 - 5 Jun 2022. 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.