This page explains how Geoffrey Cheng (USATT# 91967)'s rating went from 2049 to 2039 at the NYTT Thursday Night League event from 4 Aug 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.