This page explains how Brad Teng (USATT# 220690)'s rating went from 1028 to 1016 at the Spttc Saturday Night League event from 9 Nov 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.