This page explains how JAMES PUTMAN (USATT# 996)'s rating went from 1688 to 1687 at the Decatur Open held on - 6 Sep 1997. 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.