This page explains how Martin P. P. Del Vecchio (USATT# 18168)'s rating went from 1942 to 1926 at the 6th Garden State Open held on - 15 May 2005. 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.