This page explains how Paul A Shelor (USATT# 24924)'s rating went from 1540 to 1547 at the 2012 Saint Peters May Open held on - 13 May 2012. 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.