This page explains how Joyce Hartmann (USATT# 3177)'s rating went from 777 to 768 at the City of Manhattan (KS) TT Tour held on - 14 Oct 1995. 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.