William D Pollan
USATT#: 9143
1545 1499
Arkansas Open
- 14 Nov 1998
- 14 Nov 1998
This page explains how William D Pollan (USATT# 9143)'s rating went from 1545 to 1499 at the Arkansas Open held on - 14 Nov 1998. 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.