This page explains how William Collier (USATT# 22335)'s rating went from 1655 to 1602 at the 2000 Charlotte Open held on - 21 Oct 2000. 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.