This page explains how Walter Alomar (USATT# 21175)'s rating went from 2165 to 2142 at the Westchester 2016 February Open held on 20 Feb 2016 - 21 Feb 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.