Changping Duan
USATT#: 49379
| Coach Level: State | Certified Umpire
2152 2144
Meiklejohn North American Seniors Open
- 3 Jun 2012
- 3 Jun 2012
This page explains how Changping Duan (USATT# 49379)'s rating went from 2152 to 2144 at the Meiklejohn North American Seniors Open held on - 3 Jun 2012. 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.