This page explains how Calvin Tinhang Chan (USATT# 73906)'s rating went from 2331 to 2325 at the Westchester 2013 November Open held on - 24 Nov 2013. 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.