This page explains how Gail Kendall (USATT# 46331)'s rating went from 1171 to 1169 at the Spin Open held on - 4 Apr 1999. The links below take you to pages that describe various aspects of the rating processor.

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.