This page explains how Martin Sundel (USATT# 13660)'s rating went from 1439 to 1856 at the BTTC Members League event from 7 Sep 2006. 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.