This page explains how David Varkey (USATT# 79501)'s rating went from 1865 to 1922 at the Potomac 2013 Spring Open held on - 21 Apr 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.