This page explains how Jeremiah Sbarra (USATT# 73065)'s rating went from 1273 to 1265 at the Friendship Cup event from 14 Nov 2009. 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.