This page explains how Mishel Levinski (USATT# 87134)'s rating went from 2517 to 2511 at the Westchester 2015 November Open held on - 22 Nov 2015. 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.