This page explains how Gary Ng (USATT# 230156)'s rating went from 1308 to 1302 at the SpinBlock Monday Night League event from 20 Sep 2021. 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.