This page explains how Martin Bill Guilfoil (USATT# 6303)'s rating went from 1487 to 1514 at the Wisner Open held on - 27 Mar 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.