This page explains how Dmitriy Zhitomirskiy (USATT# 90656)'s rating went from 1457 to 1451 at the Westchester July 2018 Open held on 28 Jul 2018 - 29 Jul 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.