This page explains how William (Bill) Robbins (USATT# 32476)'s rating went from 770 to 862 at the Central Florida Spring Open held on - 5 May 2007. 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.