This page explains how William (Bill) Robbins (USATT# 32476)'s rating went from 620 to 720 at the Nicholas Group Sunburst Tour # held on - 20 Nov 2004. 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.