This page explains how Stephen D Chu (USATT# 74580)'s rating went from 2137 to 2133 at the LYTTC Friday Pro League event from 9 Dec 2016. 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.