This page explains how Angus Fong (USATT# 202789)'s rating went from 2091 to 2065 at the Spttc Saturday Night League event from 28 Sep 2019. 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.