This page explains how David W. Corbett (USATT# 49353)'s rating went from 1580 to 1583 at the Maryland Circuit held on - 8 May 1994. 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.