Changping Duan
USATT#: 49379
| Coach Level: State | Certified Umpire
2133 2131
2002 Meiklejohn Nat Sr TTT
- 9 Jun 2002
- 9 Jun 2002
This page explains how Changping Duan (USATT# 49379)'s rating went from 2133 to 2131 at the 2002 Meiklejohn Nat Sr TTT held on - 9 Jun 2002. 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.