This page explains how Robert Payne (USATT# 58258)'s rating went from 1589 to 1559 at the 2007 Summer RR held on - 16 Jun 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.