Rating Explainer

Martin P. P. Del Vecchio

USATT#: 18168

| Certified Umpire

1970 1958

Quaker City Open & Meiklejohn
- 12 Mar 2006

This page explains how Martin P. P. Del Vecchio (USATT# 18168)'s rating went from 1970 to 1958 at the Quaker City Open & Meiklejohn held on - 12 Mar 2006. The links below take you to pages that describe various aspects of the rating processor.

Introduction

Initial Rating

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.

Pass 1

Pass 2

Pass 3

Pass 4