This page explains how Benjamin Anatolii Parness (USATT# 95987)'s rating went from 1504 to 1440 at the Potomac 2016 Spring Open held on 21 May 2016 - 22 May 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.