This page explains how Zongqi Henry Zhong (USATT# 84897)'s rating went from 2520 to 2511 at the 2022 August Open @ Princeton Pong held on 6 Aug 2022 - 7 Aug 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.