This page explains how Nader Fahimi (USATT# 201540)'s rating went from 1670 to 1663 at the Westchester August 2020 Little Open held on 29 Aug 2020 - 30 Aug 2020. 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.