This page explains how John Oros (USATT# 53699)'s rating went from 1650 to 1683 at the Rockford May Open held on - 13 May 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.