This page explains how Martin Bill Guilfoil (USATT# 6303)'s rating went from 1513 to 1513 at the USATT Men's Olympic Trials held on 4 Feb 2016 - 6 Feb 2016. 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.