This page explains how John Porter (USATT# 27268)'s rating went from 1740 to 1760 at the 1st "Grand" Clearwater Category 5 Open held on - 22 Jan 2011. 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.