This page explains how John Mar (USATT# 5185)'s rating went from 1859 to 1883 at the Georgia AAU/Jr. Olympic Trials held on - 5 Jun 1999. 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.