This page explains how Grant Zou (USATT# 271539)'s rating went from 1484 to 1483 at the 2022 November Open @ Princeton Pong held on 5 Nov 2022 - 6 Nov 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.