Changping Duan
USATT#: 49379
| Coach Level: State | Certified Umpire
2018 2011
2017 SuperMicro US Nationals
3 Jul 2017 - 8 Jul 2017
3 Jul 2017 - 8 Jul 2017
This page explains how Changping Duan (USATT# 49379)'s rating went from 2018 to 2011 at the 2017 SuperMicro US Nationals held on 3 Jul 2017 - 8 Jul 2017. 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.