This page explains how Tom Spesick (USATT# 63823)'s rating went from 1717 to 1778 at the Sacramento Winter Open held on - 30 Jan 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.