This page explains how Brian Ngeunjuntr (USATT# 94254)'s rating went from 1686 to 1651 at the 2018 Aurora Cup held on 12 Jan 2018 - 14 Jan 2018. 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.