This page explains how Gregg Robertshaw (USATT# 9501)'s rating went from 2144 to 2113 at the Charlotte $1000 Loopalalooza Open held on - 14 Oct 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.