This page explains how Daniel L. Koscielski (USATT# 60887)'s rating went from 1291 to 1275 at the Killerspin Multiplex Spring Op held on - 22 Apr 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.