Changping Duan
USATT#: 49379
| Coach Level: State | Certified Umpire
2052 2064
2014 US National Championships
- 20 Dec 2014
- 20 Dec 2014
This page explains how Changping Duan (USATT# 49379)'s rating went from 2052 to 2064 at the 2014 US National Championships held on - 20 Dec 2014. 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.