This page explains how Amel Medunjanin (USATT# 85881)'s rating went from 1894 to 1880 at the Westchester 2015 May Open held on - 31 May 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.