This page explains how Ray Zhang (USATT# 214874)'s rating went from 1664 to 1663 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.