This page explains how William R. Cooper (USATT# 5055)'s rating went from 1647 to 1667 at the Sun City Senior Open held on - 11 May 1996. 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.