This page explains how Carl L. L. Bradley Jr (USATT# 34532)'s rating went from 1658 to 1631 at the Dayton Round Robin Open held on - 7 Nov 2009. 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.