Changping Duan
USATT#: 49379
| Coach Level: State | Certified Umpire
2200 2186
2004 Meiklejohn Quaker City Op
- 28 Mar 2004
- 28 Mar 2004
This page explains how Changping Duan (USATT# 49379)'s rating went from 2200 to 2186 at the 2004 Meiklejohn Quaker City Op held on - 28 Mar 2004. 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.