This page explains how Barbara L. Davies (USATT# 5237)'s rating went from 1428 to 1423 at the 2015 Houston Cap New Year Open held on - 28 Feb 2015. 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.