Changping Duan
USATT#: 49379
| Coach Level: State | Certified Umpire
2012 2027
2016 US Open
12 Dec 2016 - 17 Dec 2016
12 Dec 2016 - 17 Dec 2016
This page explains how Changping Duan (USATT# 49379)'s rating went from 2012 to 2027 at the 2016 US Open held on 12 Dec 2016 - 17 Dec 2016. 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.