This page explains how Berta Speisman (USATT# 71676)'s rating went from 1007 to 996 at the Huntsman World Senior Games held on - 6 Oct 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.