This page explains how Robert G. Johnson (USATT# 15048)'s rating went from 1443 to 1459 at the 2007 Sarasota TTC Fall Open held on - 13 Oct 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.