This page explains how Tom Spesick (USATT# 63823)'s rating went from 1650 to 1686 at the Sacramento Spring Open held on - 12 May 2007. 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.