This page explains how William T. Garrard (USATT# 42037)'s rating went from 1641 to 1657 at the US Open held on - 4 Jul 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.