This page explains how James G. Spetsios (USATT# 10193)'s rating went from 1555 to 1464 at the Rubber City Fall Open held on - 24 Sep 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.