This page explains how Bob Sanders (USATT# 3448)'s rating went from 1573 to 1562 at the South Florida "Winter Sunshine held on - 11 Jan 1998. 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.