Changping Duan
USATT#: 49379
| Coach Level: State | Certified Umpire
2164 2160
MdTTC May Open
- 25 May 1997
- 25 May 1997
This page explains how Changping Duan (USATT# 49379)'s rating went from 2164 to 2160 at the MdTTC May Open held on - 25 May 1997. 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.