This page explains how John Oros (USATT# 53699)'s rating went from 1676 to 1689 at the $1100 Schaumburg 9th Aniversar held on - 15 Apr 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.