This page explains how Raymond C. Mack (USATT# 7967)'s rating went from 2158 to 2139 at the MVTTC 2012 Summer Smash III held on - 23 Jun 2012. 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.