This page explains how David Webb (USATT# 81946)'s rating went from 584 to 618 at the 2010 Western Open on the JOOLA NA Tour held on - 20 Feb 2010. 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.