This page explains how Joe Grandalski (USATT# 45745)'s rating went from 1689 to 1706 at the 2012 Millcreek Giant Round Robin held on - 15 Apr 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.