This page explains how Thomas J. Golab (USATT# 6143)'s rating went from 1587 to 1577 at the Potomac Open 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.