This page explains how Lilas Samirad (USATT# 90355)'s rating went from 1137 to 1097 at the AZ PTTC Monday event from 4 Feb 2015. 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.