This page explains how Doug Wruck (USATT# 10604)'s rating went from 1805 to 1781 at the 49th Robo-Pong St. Joseph Valley Open held on - 10 Mar 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.