This page explains how Richard F Giroux (USATT# 71393)'s rating went from 1112 to 1212 at the Huntsman World Senior Games (Open) held on - 7 Oct 2010. 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.