| Certified Umpire
30 Jul 2016 - 31 Jul 2016
This page explains how Martin P. P. Del Vecchio (USATT# 18168)'s rating went from 2220 to 2182 at the Westchester 2016 July Open held on 30 Jul 2016 - 31 Jul 2016. The links below take you to pages that describe various aspects of the ratings processor.
The ratings 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.