This page explains how Soren Tannehill (USATT# 54553)'s rating went from 929 to 929 at the Friendliest Tournament in Amer held on - 27 Feb 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.