This page explains how Ivan V. Slade (USATT# 61466)'s rating went from 1661 to 1683 at the Meiklejohn National Seniors TT held on - 9 Jun 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.