This page explains how Huanhong Xia (USATT# 266435)'s rating went from 787 to 781 at the 2022 October Open @ Princeton Pong held on 1 Oct 2022 - 2 Oct 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.