This page explains how John Mar (USATT# 5185)'s rating went from 2305 to 2287 at the Foothills XII Open Gold Dollar Upset held on - 12 Nov 2011. 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.