This page explains how Jeremiah Sbarra (USATT# 73065)'s rating went from 1320 to 1327 at the Arizona Open held on - 13 Feb 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.