This page explains how Jeremiah Sbarra (USATT# 73065)'s rating went from 1260 to 1273 at the Friendship Cup event from 8 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.