This page explains how Brad Teng (USATT# 220690)'s rating went from 896 to 868 at the Spttc Saturday Night League event from 5 Oct 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.