This page explains how Tony Murnahan (USATT# 1523)'s rating went from 1727 to 1689 at the 17th Butterfly Cape Fear Open held on - 31 Jan 2015. 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.