This page explains how James A. Yannacone (USATT# 40478)'s rating went from 1954 to 1828 at the 2010 Spintech Spinathon held on - 30 May 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.